[Federal Register: October 23, 2000 (Volume 65, Number 205)]
[Proposed Rules]
[Page 63393-63435]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr23oc00-16]
[[pp. 63393-63435]] Harmonization With the United Nations Recommendations,
International Maritime Dangerous Goods Code, and International Civil
Aviation Organization's Technical Instructions
[[Continued from page 63392]]
[[Page 63393]]
Charges, bursting, plastics bonded... UN0457 07
Charges, bursting, plastics bonded... UN0458 07
Charges, bursting, plastics bonded... UN0459 06
Charges, bursting, plastics bonded... UN0460 05
Charges, demolition.................. UN0048 03
Charges, depth....................... UN0056 03
Charges, explosive, commercial UN0442 07
without detonator.
Charges, explosive, commercial UN0443 07
without detonator.
Charges, explosive, commercial UN0444 06
without detonator.
Charges, explosive, commercial UN0445 05
without detonator.
Charges, propelling.................. UN0271 07
Charges, propelling.................. UN0272 07
Charges, propelling.................. UN0415 07
Charges, propelling.................. UN0491 06
Charges, propelling, for cannon...... UN0242 10
Charges, propelling, for cannon...... UN0279 10
Charges, propelling, for cannon...... UN0414 10
Charges, shaped, flexible, linear.... UN0237 06
Charges, shaped, flexible, linear.... UN0288 07
Charges, shaped, without detonator... UN0059 07
Charges, shaped, without detonator... UN0439 07
Charges, shaped, without detonator... UN0440 06
Charges, shaped, without detonator... UN0441 05
Charges, supplementary explosive..... UN0060 10
Components, explosive train, n.o.s... UN0382 11
Components, explosive train, n.o.s... UN0383 06
Components, explosive train, n.o.s... UN0384 05
Components, explosive train, n.o.s... UN0461 11
Contrivances, water-activated, with UN0248 08 8E, 14E, 15E, 17E
burster, expelling charge or
propelling charge.
Contrivances, water-activated, with UN0249 08 8E, 14E, 15E, 17E
burster, expelling charge or
propelling charge.
Cord, detonating, flexible........... UN0065 07
Cord, detonating, flexible........... UN0289 06
Cord detonating or Fuse detonating UN0102 07
metal clad.
Cord, detonating or Fuse, detonating UN0290 07
metal clad.
Cord, detonating, mild effect or UN0104 06
Fuse, detonating, mild effect metal
clad.
Cord, igniter........................ UN0066 06
Cutters, cable, explosive............ UN0070 05
Cyclotetramethylenetetranitramine, UN0484 10
desensitized or Octogen,
desensitized or HMX, desensitized.
Cyclotetramethylenetetranitramine, UN0226 10
wetted or HMX, wetted or Octogen,
wetted with not less than 15 percent
water, by mass.
Cyclotrimethylenetrinitramine, UN0483 10
desensitized or Cyclonite,
desensitized or Hexogen,
desensitized or RDX, desensitized.
Cyclotrimethylenetrinitramine, wetted UN0072 10
or Cyclonite, wetted or Hexogen,
wetted or RDX, wetted with not less
than 15 percent water by mass.
Deflagrating metal salts of aromatic UN0132 10 5E
nitroderivatives, n.o.s.
Detonator assemblies, non-electric UN0360 11
for blasting.
Detonator assemblies, non-electric UN0361 06
for blasting.
Detonator assemblies, non-electric UN0500 05
for blasting.
Detonators, electric, for blasting... UN0030 11
Detonators, electric, for blasting... UN0255 06
Detonators, electric for blasting.... UN0456 05
Detonators for ammunition............ UN0073 11
Detonators for ammunition............ UN0364 11
Detonators for ammunition............ UN0365 06
Detonators for ammunition............ UN0366 05
Detonators, non-electric, for UN0029 11
blasting.
Detonators, non-electric, for UN0267 06
blasting.
Detonators, non-electric for blasting UN0455 05
Diazodinitrophenol, wetted with not UN0074 12
less than 40 percent water or
mixture of alcohol and water, by
mass.
Diethyleneglycol dinitrate, UN0075 13 21E
desensitized with not less than 25
percent non-volatile, water-
insoluble phlegmatizer, by mass.
Dinitroglycoluril or Dingu........... UN0489 10
Dinitrophenol, dry or wetted with UN0076 10 5E
less than 15 percent water, by mass.
Dinitrophenolates alkali metals, dry UN0077 10 5E
or wetted with less than 15 percent
water, by mass.
Dinitroresorcinol, dry or wetted with UN0078 10 5E
less than 15 percent water, by mass.
Dinitrosobenzene..................... UN0406 10
Dipicryl sulfide, dry or wetted with UN0401 10
less than 10 percent water, by mass.
Explosive, blasting, type A.......... UN0081 10 21E
Explosive, blasting, type B.......... UN0082 10
Explosive, blasting, type B or Agent UN0331 10
blasting, Type B.
Explosive, blasting, type C.......... UN0083 10 22E
[[Page 63394]]
Explosive, blasting, type D.......... UN0084 10
Explosive, blasting, type E.......... UN0241 10 19E
Explosive, blasting, type E or Agent UN0332 10
blasting, Type E.
Fireworks............................ UN0333 07
Fireworks............................ UN0334 07
Fireworks............................ UN0335 07
Fireworks............................ UN0336 06
Fireworks............................ UN0337 05
Flares, aerial....................... UN0093 07
Flares, aerial....................... UN0403 06
Flares, aerial....................... UN0404 05
Flares, aerial....................... UN0420 07
Flares, aerial....................... UN0421 07
Flares, surface...................... UN0092 07
Flares, surface...................... UN0418 07
Flares, surface...................... UN0419 07
Flash powder......................... UN0094 15
Flash powder......................... UN0305 15
Fracturing devices, explosive, UN0099 07
without detonators for oil wells.
Fuse, igniter tubular metal clad..... UN0103 06
Fuse, non-detonating instantaneous or UN0101 07
quickmatch.
Fuse, safety......................... UN0105 05
Fuzes, detonating.................... UN0106 11
Fuzes, detonating.................... UN0107 11
Fuzes, detonating.................... UN0257 06
Fuzes, detonating.................... UN0367 05
Fuzes, detonating, with protective UN0408 07
features.
Fuzes, detonating, with protective UN0409 07
features.
Fuzes, detonating, with protective UN0410 06
features.
Fuzes, igniting...................... UN0316 07
Fuzes, igniting...................... UN0317 06
Fuzes, igniting...................... UN0368 05
Grenades, empty primed............... NA0349 05
Grenades, hand or rifle, with UN0284 07
bursting charge.
Grenades, hand or rifle, with UN0285 07
bursting charge.
Grenades, hand or rifle, with UN0292 08
bursting charge.
Grenades, hand or rifle, with UN0293 08
bursting charge.
Grenades, practice, hand or rifle.... UN0110 05
Grenades, practice, hand or rifle.... UN0318 07
Grenades, practice, hand or rifle.... UN0372 07
Grenades, practice, Hand or rifle.... UN0452 06
Guanyl nitrosaminoguanylidene UN0113 12
hydrazine, wetted with not less than
30 percent water, by mass.
Guanyl nitrosaminoguanyltetrazene, UN0114 12
wetted or Tetrazene, wetted with not
less than 30 percent water or
mixture of alcohol and water, by
mass.
Hexanitrodiphenylamine or UN0079 10
Dipicrylamine or Hexyl.
Hexanitrostilbene.................... UN0392 10
Hexolite, or Hexotol dry or wetted UN0118 10
with less than 15 percent water, by
mass.
Hexotonal............................ UN0393 10
Igniters............................. UN0121 07
Igniters............................. UN0314 07
Igniters............................. UN0315 07
Igniters............................. UN0325 06
Igniters............................. UN0454 05
Jet perforating guns, charged oil NA0124 07
well, with detonator.
Jet perforating guns, charged oil NA0494 06
well, with detonator.
Jet perforating guns, charged, oil UN0124 07
well, without detonator.
Jet perforating guns, charged, oil UN0494 06
well, without detonator.
Lead azide, wetted with not less than UN0129 12
20 percent water or mixture of
alcohol and water, by mass.
Lead mononitroresorcinate............ NA0473 12
Lead styphnate, wetted or Lead UN0130 12
trinitroresorcinate, wetted with not
less than 20 percent water or
mixture of alcohol and water, by
mass.
Lighters, fuse....................... UN0131 05
Mannitol hexanitrate, wetted or UN0133 10
Nitromannite, wetted with not less
than 40 percent water, or mixture of
alcohol and water, by mass.
5-Mercaptotertrazol-1-acetic acid.... UN0448 09
Mercury fulminate, wetted with not UN0135 12
less than 20 percent water, or
mixture of alcohol and water, by
mass.
Mines with bursting charge........... UN0136 08
Mines with bursting charge........... UN0137 03
Mines with bursting charge........... UN0138 03
Mines with bursting charge........... UN0294 08
[[Page 63395]]
Model rocket motor................... NA0276 06
Model rocket motor................... NA0323 05
Nitro urea........................... UN0147 10
5-Nitrobenzotriazol.................. UN0385 10
Nitrocellulose, dry or wetted with UN0340 13 27E
less than 25 percent water (or
alcohol), by mass.
Nitrocellulose, plasticized with not UN0343 10
less than 18 percent plasticizing
substance, by mass.
Nitrocellulose, unmodified or UN0341 13 27E
plasticized with less than 18
percent plasticizing substance, by
mass.
Nitrocellulose, wetted with not less UN0342 10
than 25 percent alcohol, by mass.
Nitroglycerin, desensitized with not UN0143 13 21E
less than 40 percent non-volatile
water insoluble phlegmatizer, by
mass.
Nitroglycerin, solution in alcohol, UN0144 10 21E
with more than 1 percent but not
more than 10 percent nitrogylcerin.
Nitroguanidine or Picrite, dry or UN0282 10
wetted with less than 20 percent
water, by mass.
Nitrostarch, dry or wetted with less UN0146 10
than 20 percent water, by mass.
Nitrotriazolone or NTO............... UN0490 10
Octolite or Octol, dry or wetted with UN0266 10
less than 15 percent water, by mass.
Octonal.............................. UN0496 10
Pentaerythrite tetranitrate or UN0411 10
Pentaerythritol tetranitrate or
PETN, with not less than 7 percent
wax by mass.
Pentaerythrite tetranitrate, wetted UN0150 10
or Pentaerythritol tetranitrate,
wetted, or PETN, wetted with not
less than 25 percent water, by mass,
or Pentaerythrite tetranitrate, or
Pentaerythritol tetranitrate or
PETN, desensitized with not less
than 15 percent phlegmatizer by mass.
Pentolite, dry or wetted with less UN0151 10
than 15 percent water, by mass.
Powder cake, wetted or Powder paste, UN0433 10
wetted with not less than 17 percent
alcohol by mass.
Powder cake, wetted or Powder paste, UN0159 10
wetted with not less than 25 percent
water, by mass.
Powder, smokeless.................... UN0160 .............. 26E
Powder, smokeless.................... UN0161 .............. 26E
Primers, cap type.................... UN0044 05
Primers, cap type.................... UN0377 11
Primers, cap type.................... UN0378 06
Primers, tubular..................... UN0319 07
Primers, tubular..................... UN0320 06
Primers, tubular..................... UN0376 05
Projectiles, inert with tracer....... UN0345 01
Projectiles, inert, with tracer...... UN0424 03
Projectiles, inert, with tracer...... UN0425 02
Projectiles, with burster or UN0346 03
expelling charge.
Projectiles, with burster or UN0347 02
expelling charge.
Projectiles, with burster or UN0426 08
expelling charge.
Projectiles, with burster or UN0427 08
expelling charge.
Projectiles, with burster or UN0434 03
expelling charge.
Projectiles, with burster or UN0435 02
expelling charge.
Projectiles, with bursting charge.... UN0167 08
Projectiles, with bursting charge.... UN0168 03
Projectiles, with bursting charge.... UN0169 03
Projectiles, with bursting charge.... UN0324 08
Projectiles, with bursting charge.... UN0344 02
Propellant, liquid................... UN0495 10
Propellant, liquid................... UN0497 10
Propellant, solid.................... UN0498 .............. 26E
Propellant, solid.................... UN0499 .............. 26E
RDX and HMX mixtures, wetted with not UN0391 10
less than 15 percent water by mass
or RDX and HMX mixtures,
desensitized with not less than 10
percent phlegmatizer by mass.
Release devices, explosive........... UN0173 05
Rivets, explosive.................... UN0174 05
Rocket motors........................ UN0186 03
Rocket motors........................ UN0280 03
Rocket motors........................ UN0281 03
Rocket motors, liquid fueled......... UN0395 04 23E
Rocket motors, liquid fueled......... UN0396 04 23E
Rocket motors with hypergolic liquids UN0250 08 8E, 14E, 15E,
with or without an expelling charge.
Rocket motors with hypergolic liquids UN0322 08 8E, 14E, 15E,
with or without an expelling charge.
Rockets, line-throwing............... UN0238 07
Rockets, line-throwing............... UN0240 07
Rockets, line-throwing............... UN0453 06
Rockets, liquid fueled with bursting UN0397 04 23E
charge.
Rockets, liquid fueled with bursting UN0398 04 23E
charge.
Rockets, with bursting charge........ UN0180 08
Rockets, with bursting charge........ UN0181 03
[[Page 63396]]
Rockets, with bursting charge........ UN0182 03
Rockets, with bursting charge........ UN0295 08
Rockets, with expelling charge....... UN0436 03
Rockets, with expelling charge....... UN0437 03
Rockets, with expelling charge....... UN0438 02
Rockets, with inert head............. UN0183 03
Samples, explosive, other than UN0190 14
initiating explosives.
Signal devices, hand................. UN0191 06
Signal devices, hand................. UN0373 05
Signals, distress, ship.............. UN0194 07
Signals, distress, ship.............. UN0195 07
Signals, railway track, explosive.... UN0192 07
Signals, railway track, explosive.... UN0193 05
Signals, railway track, explosive.... UN0492 07
Signals, railway track, explosive.... UN0493 06
Signals, smoke....................... UN0196 07
Signals, smoke....................... UN0197 06
Signals, smoke....................... UN0313 07
Signals, smoke....................... UN0487 07
Sodium dinitro-o-cresolate, dry or UN0234 10 5E
wetted with less than 15 percent
water, by mass.
Sodium picramate, dry or wetted with UN0235 10 5E
less than 20 percent water, by mass.
Sounding devices, explosive.......... UN0204 08
Sounding devices, explosive.......... UN0296 08
Sounding devices, explosive.......... UN0374 07
Sounding devices, explosive.......... UN0375 07
Substances, explosive, n.o.s......... UN0357 .............. 8E, 14E, 15E, 17E
Substances, explosive, n.o.s......... UN0358 .............. 8E, 14E, 15E, 17E
Substances, explosive, n.o.s......... UN0359 .............. 8E, 14E, 15E, 17E
Substances, explosive, n.o.s......... UN0473 12
Substances, explosive, n.o.s......... UN0474 10
Substances, explosive, n.o.s......... UN0475 10
Substances, explosive, n.o.s......... UN0476 08
Substances, explosive, n.o.s......... UN0477 10
Substances, explosive, n.o.s......... UN0478 08
Substances, explosive, n.o.s......... UN0479 09
Substances, explosive, n.o.s......... UN0480 09
Substances, explosive, n.o.s......... UN0481 05
Substances, explosive, n.o.s......... UN0485 08
Substances, explosive, very UN0482 10
insensitive, n.o.s., or Substances,
EVI, n.o.s.
Tetranitroaniline.................... UN0207 10
Tetrazol-1-acetic acid............... UN0407 09
Torpedoes, liquid fueled, with inert UN0450 04 23E
head.
Torpedoes, liquid fueled, with or UN0449 04 23E
without bursting charge.
Torpedoes with bursting charge....... UN0329 03
Torpedoes with bursting charge....... UN0330 08
Torpedoes with bursting charge....... UN0451 03
Toy Caps............................. NA0337 05
Tracers for ammunition............... UN0212 07
Tracers for ammunition............... UN0306 06
Trinitro-meta-cresol................. UN0216 10 5E
Trinitroaniline or Picramide......... UN0153 10
Trinitroanisole...................... UN0213 10
Trinitrobenzene, dry or wetted with UN0214 10
less than 30 percent water, by mass.
Trinitrobenzenesulfonic acid......... UN0386 10 5E
Trinitrobenzoic acid, dry or wetted UN0215 10 5E
with less than 30 percent water, by
mass.
Trinitrochlorobenzene or Picryl UN0155 10
chloride..
Trinitrofluorenone................... UN0387 10
Trinitronaphthalene.................. UN0217 10
Trinitrophenetole.................... UN0218 10
Trinitrophenol or Picric acid, dry or UN0154 10 5E
wetted with less than 30 percent
water, by mass.
Trinitrophenylmethylnitramine or UN0208 10
Tetryl..
Trinitroresorcinol or Styphnic acid, UN0219 10 5E
dry or wetted with less than 20
percent water, or mixture of alcohol
and water, by mass.
Trinitroresorcinol, wetted or UN0394 10 5E
Styphnic acid, wetted with not less
than 20 percent water, or mixture of
alcohol and water by mass.
Trinitrotoluene and Trinitrobenzene UN0388 10
mixtures or TNT and trinitrobenzene
mixtures or TNT and
hexanitrostilbene mixtures or
Trinitrotoluene and
hexanitrostilnene mixtures.
Trinitrotoluene mixtures containing UN0389 10
Trinitrobenzene and
Hexanitrostilbene or TNT mixtures
containing trinitrobenzene and
hexanitrostilbene.
Trinitrotoluene or TNT, dry or wetted UN0209 10
with less than 30 percent water, by
mass.
Tritonal............................. UN0390 10
Urea nitrate, dry or wetted with less UN0220 10
than 20 percent water, by mass.
Warheads, rocket with burster or UN0370 02
expelling charge.
[[Page 63397]]
Warheads, rocket with burster or UN0371 08
expelling charge.
Warheads, rocket with bursting charge UN0286 03
Warheads, rocket with bursting charge UN0287 03
Warheads, rocket with bursting charge UN0369 08
Warheads, torpedo with bursting UN0221 03
charge.
Zirconium picramate, dry or wetted UN0236 10 5E
with less than 20 percent water, by
mass..
----------------------------------------------------------------------------------------------------------------
13. In Appendix B to Sec. 172.101, paragraphs 1. and 2. would be
revised and the List of Marine Pollutants would be amended by removing
73 entries, adding 2 entries and revising 2 entries in appropriate
alphabetical order to read as follows:
Appendix B to Sec. 172.101--List of Marine Pollutants
1. See Sec. 171.4 of this subchapter for applicability of marine
pollutants. This appendix lists potential marine pollutants as
defined in Sec. 171.8 of this subchapter.
2. Marine pollutants listed in this appendix are not necessarily
listed by name in the Sec. 172.101 Table. If a marine pollutant not
listed by name or by synonym in the Sec. 172.101 Table meets the
definition of any hazard Class 1 through 8, then you must determine
the class and division of the material in accordance with
Sec. 173.2a of this subchapter. You must also select the most
appropriate hazardous material description and proper shipping name.
If a marine pollutant not listed by name or by synonym in the
Sec. 172.101 Table does not meet the definition of any Class 1
through 8, then you must offer it for transportation under the most
appropriate of the following two Class 9 entries: ``Environmentally
hazardous substances, liquid, n.o.s.,'' UN3082, or ``Environmentally
hazardous substances, solid, n.o.s.,'' UN3077.
* * * * *
List of Marine Pollutants
------------------------------------------------------------------------
S.M.P. Marine pollutant
(1) (2)
------------------------------------------------------------------------
[Remove:].................... Acetal
Acetaldehyde
Amyl mercaptans
Anisole
Benzaldehyde
Butyl benzenes
n-Butyl butyrate
Butylphenols, liquid
Butylphenols, solid
Butyraldehyde
Calcium naphthenate
Camphor oil
Chlorotoluenes (ortho-, meta-, para-)
Coal tar
Coal tar naphtha
Creosote (coal tar)
Creosote (wood tar)
Cresols (o-; m-; p-)
Cresylic acid
Cresylic acid sodium salt
normal-Decaldehyde
normal-Decanol
Decyl acrylate
Dichlorobenzene (meta; ortho; para)
Dichlorophenols, liquid
Dichlorophenols, solid
2,4-Dichlorophenoxyacetic acid (see also
2,4D)
2,4 Dichlorophenoxyacetic acid
diethanolamine salt
2,4 Dichlorophenoxyacetic acid
dimethylamine salt
2,4-Dichlorophenoxyacetic acid
triisopropylamine salt
Diethybenzenes (mixed isomers)
Diisopropylnaphthalene
Dimethyl disulphide
Dimethyl glyoxal (butanedione)
Dimethyl sulphide
Diphenyl ether
Diphenyl ether/biphenyl phenyl ether
mixtures
Diphenyl/diphenyl ether (mixtures)
EPTC (ISO)
Ethyl acrylate, inhibited
2-Ethylbutyraldehyde
2-Ethylhexenal
Ethyl chlorothioformate
2,4-Hexadiene aldehyde
normal-Hexaldehyde
[[Page 63398]]
Iron oxide, spent
Iron sponge, spent
Isobutyl aldehyde
Isobutyl isobutyrate
Isobutyl priopionate
Isobutyraldehyde
Isodecaldehyde
Isodecanol
Isononanol
Isooctanol
Isopropylbenzene
Isovaleraldehyde
1-Methyl-4-ethylbenzene
2-Methyl-5-ethylpyridine
Methyl salicylate
2-Methylbutyraldehyde
Methylnaphthalenes, liquid
Methylnaphthalenes, solid
Naphthalene, crude or refined
Naphthalene, molten
Naphthenic acids, liquid
Naphthenic acids, solid
Nitrocresols
Nitrotolueunes (ortho-;meta-;para-),
liquid
Nitrotoluenes (ortho-;meta-;para-), solid
1-Nonanal
1-Nonanol
1-Octanol
alpha-Pinene
Propanethiols
Propionaldehyde
n-Propylbenzene
Styrene monomer, inhibited
n-Tetramethylbenzenes
4-Thiapentanal
1,2,3-Trimethylbenzene
1,2,4-Trimethyl benzene
1,3,5-Trimethyl benzene
Turpentine
1-Undecanol
normal-Valeraldehyde
Vinyltoluenes, inhibited mixed isomers
Xylenols
[Add:]
* * * *
* * *
Chlorotoluenes (meta-;para-)
* * * *
* * *
Desmedipham
* * * *
* * *
PP........................... Diclofop-methyl
* * * *
* * *
Dichlorobenzene (para)
* * * *
* * *
Diisopropylnaphthalenes, mixed isomers
* * * *
* * *
PP........................... Fenchlorazole-ethyl
* * * *
* * *
PP........................... Fenoxapro-ethyl
* * * *
* * *
PP........................... Fenoxaprop-P-ethyl
* * * *
* * *
Linuron
[[Page 63399]]
* * * *
* * *
PP........................... Silafluofen
* * * *
* * *
PP........................... 1,2,3-Trichlorobenzene
* * * *
* * *
[Revise:]
* * * *
* * *
PP........................... Dodecyl hydroxypropyl sulfide
* * * *
* * *
------------------------------------------------------------------------
14. In Sec. 172.102, in paragraph (c)(1), Special Provisions 43,
110, 128 and 136 would be revised and Special Provisions 139, 142 and
143 would be added; paragraph (c)(3) introductory text, Special
Provisions B53 and B69 and paragraphs (c)(4) and (c)(7) would be
revised; and in paragraph (c)(8), Specials Provisions W7, W8 and W9
would be added in numerical order to read as follows:
Sec. 172.102 Special provisions.
* * * * *
(c) * * *
(1) * * *
Code/Special Provisions
* * * * *
43 The membrane filters, including paper separators and coating
or backing materials, that are present in transport, must not be
able to propagate a detonation as tested by one of the tests
described in the UN Manual of Tests and Criteria, Part I, Test
series 1(a). On the basis of the results of suitable burning rate
tests, and taking into account the standard tests in the UN Manual
of Tests and Criteria, Part III, subsection 33.2.1, nitrocellulose
membrane filters in the form in which they are to be transported
that do not meet the criteria for a Division 4.1 material are not
subject to the requirements of this subchapter. Packagings must be
so constructed that explosion is not possible by reason of increased
internal pressure. Nitrocellulose membrane filters covered by this
entry, each with a mass not exceeding 0.5 g, are not subject to the
requirements of this subchapter when contained individually in an
article or a sealed packet.
* * * * *
110 Fire extinguishers transported under UN1044 may include
installed actuating cartridges (cartridges, power device of Division
1.4C or 1.4S), without changing the classification of Division 2.2,
provided the aggregate quantity of deflagrating (propellant)
explosives does not exceed 3.2 grams per extinguishing unit.
* * * * *
128 Regardless of the provisions of Sec. 172.101(c)(12),
aluminum smelting by-products, aluminum remelting by-products and
coated magnesium granules described under these entries meeting the
definition of Class 8, Packing Group II or III, may be classed as a
Division 4.3 material and transported under this entry. The presence
of a Class 8 hazard must be communicated as required by this part
for subsidiary hazards.
* * * * *
136 This entry only applies to machinery and apparatus
containing hazardous materials as in integral element of the
machinery or apparatus. It may not be used to describe machinery or
apparatus for which a proper shipping name exists in the
Sec. 172.101 Table. Except when approved by the Associate
Administrator, machinery or apparatus may only contain hazardous
materials for which exceptions are referenced in Column (8) of the
Sec. 172.101 Table and are provided in part 173, subpart D, of this
subchapter. Hazardous materials shipped under this entry are
excepted from the labeling requirements of this subchapter unless
offered for transportation or transported by aircraft and are not
subject to the placarding requirements of subpart F of part 173 of
this subchapter. Orientation markings as described in Sec. 172.312
(a)(2) are required when liquid hazardous materials may escape due
to incorrect orientation. The machinery or apparatus, if unpackaged,
or the packaging in which it is contained shall be marked
``Dangerous goods in machinery'' or ``Dangerous goods in
apparatus'', as appropriate, with the identification number UN3363.
For transportation by aircraft, machinery or apparatus may not
contain any material forbidden for transportation by passenger or
cargo aircraft. The Associate Administrator may except from the
requirements of this subchapter, equipment, machinery and apparatus
provided:
a. It is shown that it does not pose a significant risk in
transportation;
b. The quantities of hazardous materials do not exceed those
specified in Sec. 173.4 of this subchapter; and
c. The equipment, machinery or apparatus conforms with
Sec. 173.222 of this subchapter.
* * * * *
139 Use of the ``special arrangement'' proper shipping names
for international shipments must be made under an IAEA Certificate
of Competent Authority issued by the U.S. Competent Authority in
accordance with the requirements in Sec. 173.471, Sec. 173.472, or
Sec. 173.473 of this subchapter. Use of these proper shipping names
for domestic shipments may be made only under a DOT exemption, as
defined in, and in accordance with the requirements of subpart B of
part 107 of this subchapter.
* * * * *
142 These hazardous materials may not be classified and
transported unless authorized by the Associate Administrator. The
Associate Administrator will base the authorization on results from
Series 2 tests and a Series 6(c) test from the UN Manual of Tests
and Criteria on packages as prepared for transport in accordance
with the requirements of this subchapter.
143 These articles may contain:
a. Division 2.2 compressed gases, including oxygen;
b. Signal devices (Class 1) which may include smoke and
illumination signal flares. Signal devices must be packed in plastic
or fiberboard inner packagings;
c. Electric storage batteries;
d. First aid kits; or
e. Strike anywhere matches.
* * * * *
(3) ``B'' codes. These provisions apply only to bulk packagings,
other than IBCs:
Code/Special Provisions
* * * * *
B53 Packagings must be made of either aluminum or steel.
* * * * *
B69 Dry sodium cyanide or potassium cyanide may be shipped in
sift-proof weather-resistant metal covered hopper cars, covered
motor vehicles, portable tanks or non-specification bins. Bins must
be approved by the Associate Administrator.
* * * * *
(4) Table 1--IBC Codes and BB Special IBC Packing Provisions. These
[[Page 63400]]
provisions apply only to transportation in IBCs:
Table 1.--IBC Codes1
------------------------------------------------------------------------
IBC Code Authorized IBCs
------------------------------------------------------------------------
IB1.................................... Authorized IBCs: Metal (31A,
31B and 31N).
Additional Requirement: Only
liquids with a vapor pressure
less than or equal to 110 kPa
at 50 deg.C (1.1 bar at 122
deg.F), or 130 kPa at 55
deg.C (1.3 bar at 131 deg.F)
are authorized.
IB2.................................... Authorized IBCs: Metal (31A,
31B and 31N); Rigid plastics
(31H1 and 31H2); Composite
(31HZ1).
Additional Requirement: Only
liquids with a vapor pressure
less than or equal to 110 kPa
at 50 deg.C (1.1 bar at 122
deg.F), or 130kPa at 55 deg.C
(1.3 bar at 131 deg.F) are
authorized.
IB3.................................... Authorized IBCs: Metal (31A,
31B and 31N); Rigid plastics
(31H1 and 31H2); Composite
(31HZ1 and 31HA2, 31HB2,
31HN2, 31HD2 and 31HH2).
Additional Requirement: Only
liquids with a vapor pressure
less than or equal to 110 kPa
at 50 deg.C (1.1 bar at 122
deg.F), or 130 kPa at 55
deg.C (1.3 bar at 131 deg.F)
are authorized.
IB4.................................... Authorized IBCs: Metal (11A,
11B, 11N, 21A, 21B, 21N, 31A,
31B and 31N).
IB5.................................... Authorized IBCs: Metal (11A,
11B, 11N, 21A, 21B, 21N, 31A,
31B and 31N);
Rigid plastics (11H1, 11H2,
21H1, 21H2, 31H1 and 31H2);
Composite (11HZ1, 21HZ1 and
31HZ1).
IB6.................................... Authorized IBCs: Metal (11A,
11B, 11N, 21A, 21B, 21N, 31A,
31B and 31N); Rigid plastics
(11H1, 11H2, 21H1, 21H2, 31H1
and 31H2); Composite (11HZ1,
11HZ2, 21HZ1, 21HZ2, 31HZ1 and
31HZ2).
Additional Requirement:
Composite IBCs 11HZ2 and 21HZ2
may not be used when the
hazardous materials being
transported may become liquid
during transport.
IB7.................................... Authorized IBCs: Metal (11A,
11B, 11N, 21A, 21B, 21N, 31A,
31B and 31N); Rigid plastics
(11H1, 11H2, 21H1, 21H2, 31H1
and 31H2); Composite (11HZ1,
11HZ2, 21HZ1, 21HZ2, 31HZ1 and
31HZ2); Wooden (11C, 11D and
11F).
Additional Requirement: Liners
of wooden IBCs must be sift-
proof.
IB8.................................... Authorized IBCs: Metal (11A,
11B, 11N, 21A, 21B, 21N, 31A,
31B and 31N); Rigid plastics
(11H1, 11H2, 21H1, 21H2, 31H1
and 31H2); Composite (11HZ1,
11HZ2, 21HZ1, 21HZ2, 31HZ1 and
31HZ2); Fiberboard (11G);
Wooden (11C, 11D and 11F);
Flexible (13H1, 13H2, 13H3,
13H4, 13H5, 13L1, 13L2, 13L3,
13L4, 13M1 or 13M2).
IB99................................... IBCs are only authorized if
approved by the Associate
Administrator.
------------------------------------------------------------------------
1 1 IBCs may be used for the transportation of hazardous materials when
no IBC code is assigned in the Sec. 172.101 Hazardous Materials Table
for the specific material if approved by the Associate Administrator.
Table 2.--Organic Peroxide IBC Code (IB52)1
----------------------------------------------------------------------------------------------------------------
Maximum Control Emergency
UN No. Organic peroxide Type of IBC quantity temperature ( temperature (
(liters) deg.C) deg.C)
----------------------------------------------------------------------------------------------------------------
3109 ORGANIC PEROXIDE, TYPE F,
LIQUID
tert-Butyl hydroperoxide, not 31A 1250
more than 72% with water.
tert-Butyl peroxyacetate, not 31A 1250
more than 32% in diluent 31HA1 1000
type A.
tert-Butyl peroxy-3,5,5- 31A 1250
trimethylhexanoate, not more 31HA1 1000
than 32% in diluent type A.
Cumyl hydroperoxide, not more 31HA1 1250
than 90% in diluent type A.
Dibenzoyl peroxide, not more 31H1 1000
than 42% as a stable
dispersion.
Di-tert-butyl peroxide, not 31A 1250
more than 52% in diluent 31HA1 1000
type A.
1,1-Di-(tert-butylperoxy) 31H1 1000
cyclohexane, not more than
42% in diluent type A.
Dilauroyl peroxide, not more 31HA1 1000
than 42%, stable dispersion,
in water.
Isopropyl cumyl 31HA1 1250
hydroperoxide, not more than
72% in diluent type A.
p-Menthyl hydroperoxide, not 31HA1 1250
more than 72% in diluent
type A.
Peroxyacetic acid, 31H1 1500
stabilized, not more than 31HA1 1500
17%. 31A 1500
3119 ORGANIC PEROXIDE, TYPE F,
LIQUID, TEMPERATURE
CONTROLLED
tert-Butyl peroxy-2- 31HA1 1000 +30 +35
ethylhexanoate, not more 31A 1250 +30 +35
than 32% in diluent type B.
tert-Butyl 31A 1250 0 +10
peroxyneodecanoate, not more
than 32% in diluent type A.
[[Page 63401]]
tert-Butyl 31A 1250 -5 +5
peroxyneodecanoate, not more
than 42% stable dispersion,
in water.
tert-Butyl peroxypivalate, 31HA1 1000 +10 +15
not more than 27% in diluent 31A 1250 +10 +15
type B.
Cumyl peroxyneodecanoate, not 31A 1250 -15 -5
more than 52%, stable
dispersion, in water.
Di-(4-tert-butylcyclohexyl) 31HA1 1000 +30 +35
peroxydicarbonate, not more
than 42%, stable dispersion,
in water.
Dicetyl peroxydicarbonate, 31HA1 1000 +30 +35
not more than 42%, stable
dispersion, in water.
Di-(2-ethylhexyl) 31A 1250 -20 -10
peroxydicarbonate, not more
than 52%, stable dispersion,
in water.
Dimyristyl peroxydicarbonate, 31HA1 1000 +15 +20
not more than 42%, stable
dispersion, in water.
Di-(3,5,5-trimethylhexanoyl) 31HA1 1000 +10 C +15
peroxide, not more than 38% 31A 1250 +10 C +15
in diluent type A.
Di-(3,5,5-trimethylhexanoyl) 31A 1250 +10 +15
peroxide, not more than 52%,
stable dispersion, in water.
1,1,3,3-Tetramethylbutyl 31A 1250 -5 +5
peroxyneodecanoate, not more
than 52%, stable dispersion,
in water.
----------------------------------------------------------------------------------------------------------------
1 This IBC Code applies to organic peroxides of type F. For formulations not listed in this table, only IBCs
that are approved by the Associate Administrator may be used.
Table 3.--BB Codes
------------------------------------------------------------------------
------------------------------------------------------------------------
BB1.......................... IBCs must be packed in closed freight
containers or a closed transport
vehicle.
BB2.......................... When IBCs other than metal or rigid
plastics IBCs are used, they must be
offered for transportation in a closed
freight container or a closed transport
vehicle.
BB3.......................... Flexible IBCs shall be sift-proof and
water-resistant or shall be fitted with
a sift-proof and water-resistant liner.
BB4.......................... Flexible, fiberboard or wooden IBCs must
be sift-proof and water-resistant or be
fitted with a sift-proof and water-
resistant liner.
BB5.......................... IBCs must be provided with a device to
allow venting. The inlet to the venting
device must be located in the vapor
space of the IBC under maximum filling
conditions.
BB6.......................... Non-specification bulk bins are
authorized.
BB7.......................... For UN identification numbers 1327, 1363,
1364, 1365, 1386, 1841, 2211, 2217, 2793
and 3314, IBCs are not required to meet
the IBC performance tests specified in
part 178 of this subchapter.
------------------------------------------------------------------------
* * * * *
(7) ``T'' codes. (i) These provisions apply to the transportation
of UN portable tanks. Portable tank instructions specify the
requirements applicable to a portable tank when used for the
transportation of a specific hazardous material. These requirements
must be met in addition to the design and construction specifications
in part 178 of this subchapter. Portable tank instructions T1 through
T22 specify the applicable minimum test pressure, the minimum shell
thickness (in reference steel), bottom opening requirements and
pressure relief requirements. In T23, the organic peroxides and self-
reactive substances which are authorized to be transported in portable
tanks are listed along with the applicable control and emergency
temperatures. Liquefied compressed gases are assigned to portable tank
instruction T50. T50 provides the maximum allowable working pressures,
bottom opening requirements, pressure relief requirements and degree of
filling requirements for liquefied compressed gases permitted for
transport in portable tanks. Refrigerated liquefied gases which are
authorized to be transported in portable tanks are specified in tank
instruction T75.
(ii) The following table specifies the portable tank requirements
applicable to T Codes T1 through T22. Column 1 specifies the T Code.
Column 2 specifies the minimum test pressure, in bar (1 bar = 14.5
psig), at which the periodic hydrostatic testing required by
Sec. 173.32b of this subchapter must be conducted. Column 3 specifies
the section reference for minimum shell thickness or, alternatively,
the minimum shell thickness value. Column 4 specifies the applicability
of Sec. 178.275(f)(3) of this subchapter for the pressure relief
devices. When the word ``Normal'' is indicated, Sec. 178.275(f)(3) of
this subchapter does not apply. Column 5 either references the
applicable requirements for bottom openings in part 178 of this
subchapter, or references ``Prohibited'' which means bottom openings
are prohibited. The table follows:
[[Page 63402]]
Table of Portable Tank T Codes
[Portable Tank Instructions: T1-T22--Portable tank instructions. T1-T22 apply to liquid and solid hazardous materials of Classes 3 through 9 which are
transported in portable tanks.]
--------------------------------------------------------------------------------------------------------------------------------------------------------
Minimum test Minimum shell thickness Pressure-relief
Portable tank instruction pressure (in mm-reference steel) requirements (See Sec. Bottom opening requirements (See Sec.
(bar) (See Sec. 178.274(d)) 178.275(f)) 178.275(c))
(1) (2) (3)....................... (4)....................... (5)
--------------------------------------------------------------------------------------------------------------------------------------------------------
T1.................................... 1.5 Sec. 178.274(d)(2)....... Normal.................... Sec. 178.274(c)(2).
T2.................................... 1.5 Sec. 178.274(d)(2)....... Normal.................... Sec. 178.275(c)(3).
T3.................................... 2.65 Sec. 178.274(d)(2)....... Normal.................... Sec. 178.275(c)(2).
T4.................................... 2.65 Sec. 178.274(d)(2)....... Normal.................... Sec. 178.275(c)(3).
T5.................................... 2.65 Sec. 178.274(d)(2)....... Sec. 178.275(f)(3)....... Prohibited.
T6.................................... 4 Sec. 178.274(d)(2)....... Normal.................... Sec. 178.275(c)(2).
T7.................................... 4 Sec. 178.274(d)(2)....... Normal.................... Sec. 178.275(c)(3).
T8.................................... 4 Sec. 178.274(d)(2)....... Normal.................... Prohibited.
T9.................................... 4 6 mm...................... Normal.................... Prohibited.
T10................................... 4 6 mm...................... Sec. 178.275(f)(3)....... Prohibited.
T11................................... 6 Sec. 178.274(d)(2)....... Normal.................... Sec. 178.275(c)(3).
T12................................... 6 Sec. 178.274(d)(2)....... Sec. 178.275(f)(3)....... Sec. 178.275(c)(3).
T13................................... 6 6 mm...................... Normal.................... Prohibited.
T14................................... 6 6 mm...................... Sec. 178.275(f)(3)....... Prohibited.
T15................................... 10 Sec. 178.274(d)(2)....... Normal.................... Sec. 178.275(c)(3).
T16................................... 10 Sec. 178.274(d)(2)....... Sec. 178.275(f)(3)....... Sec. 178.275(c)(3).
T17................................... 10 6 mm...................... Normal.................... Sec. 178.275(c)(3).
T18................................... 10 6 mm...................... Sec. 178.275(f)(3)....... Sec. 178.275(c)(3).
T19................................... 10 6 mm...................... Sec. 178.275(f)(3)....... Prohibited.
T20................................... 10 8 mm...................... Sec. 178.275(f)(3)....... Prohibited.
T21................................... 10 10 mm..................... Normal.................... Prohibited.
T22................................... 10 10 mm..................... Sec. 178.275(f)(3)....... Prohibited.
--------------------------------------------------------------------------------------------------------------------------------------------------------
(iii) The following table specifies the portable tank requirements
applicable to T23 for self-reactive substances of Division 4.1 and
organic peroxides of Division 5.2 which are authorized to be
transported in portable tanks:
Portable Tank Instruction
[T23--Portable tank instruction. T23 applies to self-reactive substances of Division 4.1 and organic peroxides of Division 5.2.]
--------------------------------------------------------------------------------------------------------------------------------------------------------
Minimum
test Minimum shell Bottom opening Pressure-relief Control Emergency
UN No. Hazardous material pressure thickness (mm- requirements requirements Filling limits temperature ( temperature (
(bar) reference steel) deg.C) deg.C)
--------------------------------------------------------------------------------------------------------------------------------------------------------
3109 Organic peroxide, 444444 See Sec. See Sec. See Sec. Not more than 90%
Type F, liquid. 178.274(d)(2). 178.275(c)(3). 178.275(j)(1). at 59 deg.F (15
deg.C).
tert-Butyl Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90%
hydroperoxide not ). 3). 1). at 59 deg.F (15
more than 72% deg.C).
water. (Provided
that steps have
been taken to
achieve the safety
equivalence of 65%
tert-Butyl
hydroperoxide and
35% water.).
Cumyl hydro- Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90%
peroxide, not more ). 3). 1). at 59 deg.F (15
than 90% in deg.C).
diluent type A.
Di-tert-butyl Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90%
peroxide, not more ). 3). 1). at 59 deg.F (15
than 32% in deg.C).
diluent type A.
Isopropyl cumyl Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90%
hydro-peroxide, ). 3). 1). at 59 deg.F (15
not more than 72% deg.C).
in diluent type A.
p-Menthyl hydro- Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90%
peroxide, not more ). 3). 1). at 59 deg.F (15
than 72% in deg.C).
diluent type A.
Pinanyl hydro- Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90%
peroxide, not more ). 3). 1). at 59 deg.F (15
than 50% in deg.C).
diluent type A.
3110 Organic peroxide, 4 Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90%
Type F, solid. ). 3). 1). at 59 deg.F (15
deg.C).
Dicumyl peroxide.
Maximum quantity
per portable tank
2,000 kg.
3119 Organic peroxide, 444444 See Sec. See Sec. See Sec. Not more than 90% As approved by As approved by
Type F, liquid, 178.274(d)(2). 178.275(c)(3). 178.275(j)(1). at 59 deg.F (15 Assoc. Admin. Assoc. Admin.
temperature deg.C). for HMS. for HMS.
controlled.
[[Page 63403]]
tert-Butyl Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90% +30.............. +35
peroxyacetate, not ). 3). 1). at 59 deg.F (15
more than 32% in deg.C).
diluent type B.
tert-Butyl peroxy-2- Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90% +15.............. +20
ethylhexanoate, ). 3). 1). at 59 deg.F (15
not more than 32% deg.C).
in diluent type B.
tert-Butyl Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90% -5............... +10
peroxypivalate, ). 3). 1). at 59 deg.F (15
not more than 27% deg.C).
in diluent type B.
tert-Butyl peroxy- Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90% +35.............. +40
3,5,5-trimethyl- ). 3). 1). at 59 deg.F (15
hexanoate, not deg.C).
more than 32% in
diluent type B.
Di-(3,5,-trimethyl- Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90% 0................ +5
hexanoyl) ). 3). 1). at 59 deg.F (15
peroxide, not more deg.C).
than 38% in
diluent type A.
3120 Organic peroxide, 4 Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90% As approved by As approved by
Type F, solid, ). 3). 1). at 59 deg.F (15 Assoc. Admin. Assoc. Admin.
temperature deg.C). for HMS. for HMS.
controlled.
3229 Self-reactive 4 Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90%
liquid Type F. ). 3). 1). at 59 deg.F (15
deg.C).
3230 Self-Reactive solid 4 Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90%
Type F. ). 3). 1). at 59 deg.F (15
deg.C).
3239 Self-reactive 4 Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90% As approved by As approved by
liquid Type F, ). 3). 1). at 59 deg.F (15 Assoc. Admin. Assoc. Admin.
temperature deg.C). for HMS. for HMS.
controlled.
3240 Self-reactive solid 4 Sec. 178.274(d)(2 Sec. 178.275(c)( Sec. 178.275(j)( Not more than 90% As approved by As approved by
Type F, ). 3). 1). at 59 deg.F (15 Assoc. Admin. Assoc. Admin.
temperature deg.C). for HMS. for HMS.
controlled.
--------------------------------------------------------------------------------------------------------------------------------------------------------
(iv) The following portable tank instruction applies to portable
tanks used for the transportation of liquefied compressed gases. The
T50 table provides the UN identification number and proper shipping
name for each liquefied compressed gas authorized to be transported in
a T50 portable tank. The following table provides maximum allowable
working pressures, bottom opening requirements, pressure relief device
requirements and degree of filling requirements for each liquefied
compressed gases permitted for transportation in a T50 portable tank:
Note to reader: We are proposing to revise the word
``stabilized'' in the proper shipping names below to read
``inhibited'' (see preamble discussion under Sec. 172.101).
Portable Tank Instruction
[T50--Portable tank instruction 50 applies to liquefied compressed gases.]
--------------------------------------------------------------------------------------------------------------------------------------------------------
Max. allowable
working
UN Non-refrigerated liquefied pressure (bar) Pressure relief requirements (See Maximum filing density
No. compressed gasses Small; Bare; Openings below liquid level Sec. 178.276(e)) (kg/l)
Sunshield
Insulated
--------------------------------------------------------------------------------------------------------------------------------------------------------
1005 Ammonia, anhydrous.......... 29.0 Allowed............................. Sec. 178.276(e)................... 0.53
25.7
22.0
19.7
1009 Bromotrifluoromethane or 38.0 ......do............................ Normal............................. 1.13
Refrigerant gas R 13B1. 34.0
30.0
27.5
1010 Butadienes, stabilized...... 7.5 ......do............................ ......do........................... 0.55
7.0
7.0
7.0
1011 Butane...................... 7.0 ......do............................ ......do........................... 0.51
7.0
7.0
7.0
[[Page 63404]]
1012 Butylene.................... 8.0 ......do............................ ......do........................... 0.53
7.0
7.0
7.0
017 Chlorine.................... 19.0 Not allowed......................... Sec. 178.276(e)................... 1.25
17.0
15.0
13.5
1018 Chlorodifluoromethane or 26.0 Allowed............................. Normal............................. 1.03
Refrigerant gas R 22. 24.0
21.0
19.0
1020 Chloropentafluoroethane or 23.0 ......do............................ ......do........................... 1.06
Refrigerant gas R 115. 20.0
18.0
16.0
1021 1-Chloro-1,2,2,2- 10.3 ......do............................ ......do........................... 1.2
tetrafluoroethane or 9.8
Refrigerant gas R 124. 7.9
7.0
1027 Cyclopropane................ 18.0 ......do............................ ......do........................... 0.53
16.0
14.5
13.0
1028 Dichlorodifluoromethane or 16.0 ......do............................ ......do........................... 1.15
Refrigerant gas R 12. 15.0
13.0
11.5
1029 Dichlorofluoromethane or 7.0 ......do............................ ......do........................... 1.23
Refrigerant gas R 21. 7.0
7.0
7.0
1030 1,1-Difluoroethane or 16.0 ......do............................ ......do........................... 0.79
Refrigerant gas R 152a. 14.0
12.4
11.0
1032 Dimethylamine, anhydrous.... 7.0 ......do............................ ......do........................... 0.59
7.0
7.0
7.0
1033 Dimethyl ether.............. 15.5 ......do............................ ......do........................... 0.58
13.8
12.0
10.6
1036 Thylamine................... 7.0 ......do............................ ......do........................... 0.61
7.0
7.0
7.0
1037 Ethyl chloride.............. 7.0 ......do............................ ......do........................... 0.8
7.0
7.0
7.0
1040 Ethylene oxide with nitrogen -10 Not allowed......................... Sec. 178.276(e)................... .078
up to a total pressure of
1MPa (10 bar) at 50 deg.C.
1041 Ethylene oxide and carbon 1 Allowed............................. Normal............................. See
dioxide mixture with more Sec. 173.32(f)
than 9% but no more than
87% ethylene oxide.
1055 Isobutylene................. 8.1 ......do............................ ......do........................... 0.52
7.0
7.0
7.0
1060
Methyl acetylene and 28.0 ......do............................ ......do........................... 0.43
propadiene mixture, 24.5
stabilized. 22.0
20.0
[[Page 63405]]
1061 Methylamine, anhydrous...... 10.8 ......do............................ ......do........................... 0.58
9.6
7.8
7.0
1062 Methyl bromide.............. 7.0 Not allowed......................... Sec. 178.276(e)................... 1.51
7.0
7.0
7.0
1063 Methyl chloride or 14.5 Allowed............................. Normal............................. .081
Refrigerant gas R 40. 12.7
11.3
10.0
1064 Methyl mercaptan............ 7.0 Not allowed......................... Sec. 178.276(e)................... 0.78
7.0
7.0
7.0
1067 Dinitrogen tetroxide........ 7.0 ....do.............................. Sec. 178.276(e)................... 1.3
7.0
7.0
7.0
1075 Petroleum gas, liquefied.... (1) Allowed............................. Normal............................. See Sec. 173.32(f)
1077 Propylene................... 28.0 ......do............................ ......do........................... 0.43
24.5
22.0
20.0
1078 Refrigerant gas, n.o.s...... (1) ......do............................ ......do........................... See Sec. 173.32(f)
1079 Sulphur dioxide............. 11.6 Not Allowed......................... Sec. 178.276(e)................... 1.23
10.3
8.5
7.6
1082 Trifluorochloroethylene, 17.0 ......do............................ Sec. 178.276(e)................... 1.13
stabilized or Refrigerant 15.0
gas R 1113. 13.1
11.6
1083 Trimethylamine, anhydrous... 7.0 Allowed............................. Normal............................. 0.56
7.0
7.0
7.0
1085 Vinyl bromide, stabilized... 7.0 ......do............................ ......do........................... 1.37
7.0
7.0
7.0
1086 Vinyl chloride, stabilized.. 10.6 ......do............................ ......do........................... 0.81
9.3
8.0
7.0
1087 Vinyl methyl ether, 7.0 ......do............................ ......do........................... 0.67
stabilized. 7.0
7.0
7.0
1581 Chloropicrin and methyl 7.0 Not allowed......................... Sec. 178.276(e)................... 1.51
bromide mixture. 7.0
7.0
7.0
1582 Chloropicrin and methyl 19.2 ......do............................ Sec. 178.276(e)................... 0.81
chloride mixture. 16.9
15.1
13.1
1858 Hexafluoropropylene 19.2 Allowed............................. Normal............................. 1.11
compressed or Refrigerant 16.9
gas R 1216. 15.1
13.1
[[Page 63406]]
1912 Methyl chloride and 15.2 ......do............................ ......do........................... 0.81
methylene chloride mixture. 13.0
11.6
10.1
1958 1,2-Dichloro-1,1,2,2- 7.0 ......do............................ ......do........................... 1.3
tetrafluoroethane or 7.0
Refrigerant gas R 114. 7.0
7.0
1965 Hydrocarbon gas, mixture (1) ......do............................ ......do........................... See Sec. 173.32(f)
liquefied, n.o.s.
1969 Isobutane................... 8.5 ......do............................ ......do........................... 0.49
7.5
7.0
7.0
1973 Chlorodifluoromethane and 28.3 ......do............................ ......do........................... 1.05
chloropentafluoroethane 25.3
mixture with fixed boiling 22.8
point, with approximately 20.3
49% chlorodifluoromethane
or Refrigerant gas R 502.
1974 Chlorodifluorobromomethane 7.4 ......do............................ ......do........................... 1.61
or Refrigerant gas R 12B1. 7.0
7.0
7.0
1976 Octafluorocyclobutane or 8.8 ......do............................ ......do........................... 1.34
Refrigerant gas RC 318. 7.8
7.0
7.0
1978 Propane..................... 22.5 ......do............................ ......do........................... 0.42
20.4
18.0
16.5
1983 1-Chloro-2,2,2- 7.0 ......do............................ ......do........................... 1.18
trifluoroethane or 7.0
Refrigerant gas R 133a. 7.0
7.0
2035 1,1,1-Trifluoroethane 31.0 ......do............................ ......do........................... 0.76
compressed or Refrigerant 27.5
gas R 143a. 24.2
21.8
2424 Octafluoropropane or 23.1 ......do............................ ......do........................... 1.07
Refrigerant gas R 218. 20.8
18.6
16.6
2517 1-Chloro-1,1-difluoroethane 8.9 ......do............................ ......do........................... 0.99
or Refrigerant gas R 142b. 7.8
7.0
7.0
2602 Dichlorodifluoromethane and 20.0 ......do............................ ......do........................... 1.01
difluoroethane azeotropic 18.0
mixture with approximately 16.0
74% dichlorodifluoromethane 14.5
or Refrigerant gas R 500.
3057 Trifluoroacetyl chloride.... 14.6 Not allowed......................... Sec. 178.276(e)................... 1.17
12.9
11.3
9.9
3070 Ethylene oxide and 14.0 Allowed............................. Sec. 178.276(e)................... 1.09
dichlorodifluoromethane 12.0
mixture with not more than 11.0
12.5% ethylene oxide. 9.0
3153 Perfluoro (methyl vinyl 14.3 ......do............................ Normal............................. 1.14
ether). 13.4
11.2
10.2
3159 1,1,1,2-Tetrafluoroethane or 17.7 ......do............................ ......do........................... 1.04
Refrigerant gas R 134a. 15.7
13.8
12.1
[[Page 63407]]
3161 Liquefied gas, flammable, (1) ......do............................ ......do........................... See
n.o.s.. Sec. 173.32(f)
3163 Liquefied gas, n.o.s........ (1) ......do............................ ......do........................... See
Sec. 173.32(f)
3220 Pentafluoroethane or 34.4 ......do............................ ......do........................... 0.95
Refrigerant gas R 125. 30.8
27.5
24.5
3252 Difluoromethane or 43.0 ......do............................ ......do........................... 0.78
Refrigerant gas R 32. 39.0
34.4
30.5
3296 Heptafluoropropane or 16.0 ......do............................ ......do........................... 1.2
Refrigerant gas R 227. 14.0
12.5
11.0
3297 Ethylene oxide and 8.1 ......do............................ ......do........................... 1.16
chlorotetrafluoroethane 7.0
mixture, with not more than 7.0
8.8% ethylene oxide. 7.0
3298 Ethylene oxide and 25.9 ......do............................ ......do........................... 1.02
pentafluoroethane mixture, 23.4
with not more than 7.9% 20.9
ethylene oxide. 18.6
3299 Ethylene oxide and 16.7 ......do............................ ......do........................... 1.03
tetrafluoroethane mixture, 14.7
with not more than 5.6% 12.9
ethylene oxide. 11.2
3318 Ammonia solution, relative (1) .....do............................. Sec. 178.276(e)................... Sec. 173.32(f)
density less than 0.880 at
15 deg.C in water, with
more than 50% ammonia.
3337 Refrigerant gas R 404A...... 31.6 ......do............................ Normal............................. 0.84
28.3
25.3
22.5
3338 Refrigerant gas R 407A...... 31.3 ......do............................ ......do........................... 0.95
28.1
25.1
22.4
3339 Refrigerant gas R 407B...... 33.0 ......do............................ ......do........................... 0.95
29.6
26.5
23.6
3340 Refrigerant gas R 407C...... 29.9 ......do............................ ......do........................... 0.95
26.8
23.9
21.3
--------------------------------------------------------------------------------------------------------------------------------------------------------
1 See MAWP definition in Sec. 178.276(a).
(v) When portable tank instruction T75 is referenced in Column (7)
of the Sec. 172.101 Table, the applicable refrigerated liquefied gases
are authorized to be transported in portable tanks in accordance with
the requirements of Sec. 178.277 of this subchapter.
(vi) When a specific portable tank instruction is specified by a T
Code in Column (7) of the Sec. 172.101 Table for a specific hazardous
material, a Specification portable tank conforming to an alternative
tank instruction may be used if:
(A) the portable tank has a higher or equivalent test pressure (for
example, 4 bar when 2.65 bar is specified);
(B) the portable tank has greater or equivalent wall thickness (for
example, 10 bar when 6 bar is specified);
(C) the portable tank has a pressure relief device as specified in
the T Code or is preceded by a frangible disc when no frangible disc is
required. If a frangible disc is required in series with the pressure
relief device, the alternative portable tank must be fitted with a
frangible disc; and
(D) the portable tank is fitted with bottom openings having two or
three effective means of closure or no bottom openings when two
effective means of closure are specified; or the portable tank has no
bottom openings or three effective means of closure when three
effective means of closure are specified. If no bottom openings are
authorized, the alternative portable tank must not have bottom
openings.
[[Page 63408]]
(vii) When a hazardous material is not assigned a portable tank T
Code or TP 9 is referenced in Column (7) of the Sec. 172.101 Table, the
hazardous material may only be transported in a portable tank if
approved by the Associate Administrator.
(viii) Portable tank special provisions are assigned to certain
hazardous materials to specify requirements that are in addition to
those provided by the portable tank instructions or the requirements in
part 178 of this subchapter. Portable tank special provisions are
designated with the abbreviation TP (tank provision) and are assigned
to specific hazardous materials in Column (7) of the Sec. 172.101
Table. The following is a list of the portable tank special provisions:
Code/Special Provisions
TP1 The maximum degree of filling must not exceed the degree of
filling determined by the following (see Note 1 following TP3 for an
explanation of the coefficients):
[GRAPHIC] [TIFF OMITTED] TP23OC00.000
TP2 The maximum degree of filling must not exceed the degree of
filling determined by the following (see Note 1 following TP3):
[GRAPHIC] [TIFF OMITTED] TP23OC00.001
TP3 a. For liquids transported under elevated temperature, the
maximum degree of filling is determined by the following:
[GRAPHIC] [TIFF OMITTED] TP23OC00.002
Where: is the mean coefficient of cubical expansion of
the liquid between the mean temperature of the liquid during filling
(tf) and the maximum mean bulk temperature during
transportation (tr) both in degrees celsius.
b. For liquids transported under ambient conditions
may be calculated using the formula:
[GRAPHIC] [TIFF OMITTED] TP23OC00.003
Where: d15 and d50 are the densities of
the liquid at 15 deg.C (59 deg.F) and 50 deg.C (122 deg.F),
respectively.
TP4 The maximum degree of filling for portable tanks must not
exceed 90%.
TP5 [Reserved.]
TP6 To prevent the tank from bursting in an event, including fire
engulfment under the conditions prescribed in CGA pamphlet S-1.2
(see Sec. 171.7 of this subchapter), it must be equipped with
pressure relief devices that are adequate in relation to the
capacity of the tank and the nature of the hazardous material
transported.
TP7 The vapor space must be purged of air by nitrogen or other
means.
TP8 A portable tank having a minimum test pressure of 1.5 bar (150
kPa) may be used when the flashpoint of the hazardous material
transported is greater than 0 deg.C (32 deg.F).
TP9 A hazardous material assigned to special provision TP9 in
Column (7) of the Sec. 172.101 Table may only be transported in a
portable tank if approved by the Associate Administrator.
TP10 The portable tank must be fitted with a lead lining at least 5
mm (0.2 inches) thick. The lead lining must be tested annually to
ensure that it is intact and functional. Another suitable lining
material may be used if approved by the Associate Administrator.
TP12 This material is considered highly corrosive to steel.
TP13 Self-contained breathing apparatus must be provided when this
hazardous material is transported by sea.
TP16 The tank must be protected against over and under
pressurization which may be experienced during transportation. The
means of protection must be approved by the approval agency
designated to approve the portable tank in accordance with the
procedures in subpart E, part 107 of this subchapter. The pressure
relief device must be preceded by a frangible disk in accordance
with the requirements of Sec. 178.275(f)(3) of this subchapter to
prevent crystallization of the product in the pressure relief
device.
TP17 Only inorganic non-combustible materials may be used for
thermal insulation of the tank.
TP18 The temperature of this material must be maintained between 18
deg.C (64.4 deg.F) and 40 deg.C (104 deg.F) while in
transportation. Portable tanks containing solidified methacrylic
acid must not be reheated during transportation.
TP19 The calculated wall thickness must be increased by 3 mm at the
time of construction. Wall thickness must be verified ultrasonically
at intervals midway between periodic hydraulic tests (every 2.5
years). The portable tank must not be used if the wall thickness is
less than that prescribed by the applicable T code in Column (7) of
the Table for this material.
TP20 This hazardous material must only be transported in insulated
tanks under a nitrogen blanket.
TP21 The wall thickness must not be less than 8 mm. Tanks must be
hydraulically tested and internally inspected at intervals not
exceeding 2.5 years.
TP22 Lubricants for portable tank fittings must be oxygen
compatible.
TP24 The portable tank may be fitted with a device to prevent the
build up of excess pressure due to the slow decomposition of the
hazardous material being transported. The device must be in the
vapor space when the tank is filled under maximum filling
conditions. This device must also prevent an unacceptable amount of
leakage of liquid in the case of overturning.
TP25 Sulphur trioxide 99.95% pure and above may be transported in
tanks without an inhibitor provided that it is maintained at a
temperature equal to or above 32.5 deg.C (90.5 deg.F).
TP26 The heating device must be exterior to the shell. For UN 3176,
this requirement only applies when the hazardous material reacts
dangerously with water.
TP27 A portable tank having a minimum test pressure of 4 bar (400
kPa) may be used provided the calculated test pressure is 4 bar or
less based on the MAWP of the hazardous material, as defined in
Sec. 178.275, where the test pressure is 1.5 times the MAWP.
TP28 A portable tank having a minimum test pressure of 2.65 bar
(265 kPa) may be used provided the calculated test pressure is 2.65
bar or less based on the MAWP of the hazardous material, as defined
in Sec. 178.275 of this subchapter, where the test pressure is 1.5
times the MAWP.
TP29 A portable tank having a minimum test pressure of 1.5 bar
(150.0 kPa) may be used provided the calculated test pressure is 1.5
bar or less based on the MAWP of the hazardous materials, as defined
in Sec. 178.275 of this subchapter, where the test pressure is 1.5
times the MAWP.
TP30 This hazardous material may only be transported in insulated
tanks.
TP31 This hazardous material may only be transported in tanks in
the solid state.
TP37 IM portable tanks are only authorized for the shipment of
hydrogen peroxide solutions in water containing 72% or less hydrogen
peroxide by weight. Pressure relief devices shall be designed to
prevent the entry of foreign matter, the leakage of liquid and the
development of any dangerous excess pressure. In addition, the
portable tank must be designed so that internal surfaces may be
effectively cleaned and passivated. Each tank must be equipped with
pressure relief devices conforming to the following requirements:
------------------------------------------------------------------------
Total
venting
capacity in
standard
cubic feet
Concentration of hydrogen peroxide solution per hour
(S.C.F.H.)
per pound
of hydrogen
peroxide
solution
------------------------------------------------------------------------
52% or less................................................ 11
Over 52%, but not greater than 60%......................... 22
Over 60%, but not greater than 72%......................... 32
------------------------------------------------------------------------
TP38 Each tank must be insulated with an insulating material so
that the overall thermal conductance at 15.5 deg.C (60 deg.F) is
no more than 1.5333 kilojoules per hour per square meter per degree
Celsius (0.075 Btu per hour per square foot per degree Fahrenheit)
temperature differential. Insulating materials may not promote
corrosion to steel when wet.
TP44 Each portable tank must be made of stainless steel, except
that steel other than stainless steel may be used in accordance with
the provisions of Sec. 173.24b(b) of this
[[Page 63409]]
subchapter. Thickness of stainless steel for tank shell and heads
must be the greater of 7.62 mm (0.300 inch) or the thickness
required for a portable tank with a design pressure at least equal
to 1.5 times the vapor pressure of the hazardous material at 46
deg.C (115 deg.F).
TP45 Each portable tank must be made of stainless steel, except
that steel other than stainless steel may be used in accordance with
the provisions of 173.24b(b) of this subchapter. Thickness of
stainless steel for portable tank shells and heads must be the
greater of 6.35 mm (0.250 inch) or the thickness required for a
portable tank with a design pressure at least equal to 1.3 times the
vapor pressure of the hazardous material at 46 deg.C (115 deg.F).
TP46 Portable tanks in sodium metal service are not required to be
hydrostatically retested.
TP47 This hazardous material is not permitted for transport in IM
portable tanks.
* * * * *
(8) * * *
Code/Special Provisions
W7 Vessel stowage category for uranyl nitrate hexahydrate solution
is ``D'' as defined in Sec. 172.101(k)(4).
W8 Vessel stowage category for pyrophoric thorium metal or
pyrophoric uranium metal is ``D'' as defined in Sec. 172.101(k)(4).
W9 When offered for transportation by water, the following
Specification packagings are not authorized unless approved by the
Associate Administrator: Woven plastic bags, plastic film bags,
textile bags, paper bags, IBCs and bulk packagings.
* * * * *
13. In addition, in Sec. 172.102, in paragraph (c)(3), Special
Provisions B100, B101, B103, B104, B105, B106, B108, B109 and B110
would be removed.
14. In Sec. 172.203, paragraph (d)(11) would be revised, new
paragraphs (i)(5) and (i)(6) would be added, and paragraph (n) would be
revised to read as follows:
Sec. 172.203 Additional description requirements.
* * * * *
(d) * * *
(11) For a shipment of low specific activity material or surface
contaminated objects, the appropriate group notation of LSA-I, LSA-II,
LSA-III, SCO-I, or SCO-II, unless these symbols are contained in the
proper shipping name.
* * * * *
(i) * * *
(5) Minimum flashpoint if 61 deg.C or below (in deg.C closed cup
(c.c.).
(6) Subsidiary hazards not communicated in the proper shipping
name.
* * * * *
(n) Elevated temperature materials. If a liquid material in a
package meets the definition of an elevated temperature material in
Sec. 171.8 of this subchapter, and the fact that it is an elevated
temperature material is not disclosed in the proper shipping name (for
example, when the words ``Molten'' or ``Elevated temperature'' are part
of the proper shipping name), the word ``HOT'' must immediately precede
the proper shipping name of the material on the shipping paper.
* * * * *
15. In Sec. 172.402, paragraph (b) would be revised to read as
follows:
Sec. 172.402 Additional labeling requirements.
* * * * *
(b) Display of hazard class on labels. The appropriate hazard class
or division number must be displayed in the lower corner of a primary
hazard label and a subsidiary hazard label. A subsidiary label meeting
the specifications of this section which were in effect on [Date of
publication of final rule] (such as, a label without the hazard class
or division number displayed in the lower corner of the label) may
continue to be used as a subsidiary label in domestic transportation by
rail or highway until October 1, 2005, provided the color tolerances
are maintained and are in accordance with the display requirements in
this subchapter.
* * * * *
Sec. 172.405 [Amended]
16. In Sec. 172.405, the following changes would be made:
a. In paragraph (a) introductory text, the wording ``subsidiary
label when--'' would be removed and ``subsidiary label.'' would be
added in its place.
b. Paragraphs (a)(1) and (a)(2) would be removed.
17. In Sec. 172.411, the section heading, the text of paragraph (c)
preceding the labels, and paragraph (d) would be revised to read as
follows:
Sec. 172.411 EXPLOSIVE 1.1, 1.2, 1.3, 1.4, 1.5 and 1.6 labels.
* * * * *
(c) Except for size and color, the EXPLOSIVE 1.4, EXPLOSIVE 1.5 and
EXPLOSIVE 1.6 labels must be as follows:
* * * * *
(d) In addition to complying with Sec. 172.407, the background
color on the EXPLOSIVE 1.4, EXPLOSIVE 1.5, EXPLOSIVE 1.6 and EXPLOSIVE
subsidiary label must be orange. The ``*'' shall be replaced with the
appropriate compatibility group. The compatibility group letter must be
shown as a capitalized Roman letter. Division numerals must measure at
least 30 mm (1.2 inches) in height and at least 5 mm (0.2 inches) in
width.
18. In addition, in Sec. 172.411, in paragraph (c), the wording
``EXPLOSIVE SUBSIDIARY LABEL:'' and the label following it would be
removed.
19. In Sec. 172.504, in paragraph (g), a sentence would be added at
the end of the existing text and paragraphs (g)(1) through (g)(4) would
be added to read as follows:
Sec. 172.504 General placarding requirements.
* * * * *
(g) * * * When more than one compatibility group placard is
required for Class 1 materials, only one placard is required to be
displayed as follows:
(1) Explosive articles of compatibility groups C, D or E may be
placarded displaying compatibility group E.
(2) Explosive articles of compatibility groups C, D, E or N may be
placarded displaying compatibility group D.
(3) Explosive substances of compatibility groups C and D may be
placarded displaying compatibility group D.
(4) Explosive articles of compatibility groups C, D, E or G, except
for fireworks, may be placarded displaying compatibility group E.
20. In Sec. 172.519, paragraph (b)(4) would be revised to read as
follows:
Sec. 172.519 General specifications for placards.
* * * * *
(b) * * *
(4) For a placard corresponding to the primary or subsidiary hazard
class of a material, the hazard class or division number must be
displayed in the lower corner of the placard. A permanently affixed
subsidiary placard meeting the specifications of this section which
were in effect on [date of publication of final rule] (such as, a
placard without the hazard class or division number displayed in the
lower corner of the placard) and which was installed prior to October
1, 2001, may continue to be used as a subsidiary placard in domestic
transportation by rail or highway, provided the color tolerances are
maintained and are in accordance with the display requirements in this
subchapter. Stocks of non-permanently affixed subsidiary placards in
compliance with the requirements in effect on [date of publication of
final rule], may continue to be used in domestic transportation by rail
or highway until October 1, 2005, or until current stocks are depleted,
whichever occurs first.
* * * * *
[[Page 63410]]
PART 173--SHIPPERS--GENERAL REQUIREMENTS FOR SHIPMENTS AND
PACKAGINGS
21. The authority citation for part 173 would continue to read as
follows:
Authority: 49 U.S.C. 5101-5127, 44701; 49 CFR 1.53.
22. In Sec. 173.2a, in paragraph (b), in the Precedence of Hazard
Table, in the first column, the first three entries would be amended by
adding a footnote reference ``2'' immediately following ``I'',
``II'', and ``III'', respectively, and in footnote 2 at the end of the
table would be revised to read as follows:
Sec. 173.2a Classification of a material having more than one hazard.
* * * * *
(b) * * *
Precedence of Hazard Table
------------------------------------------------------------------------
-------------------------------------------------------------------------
* * * *
* * *
------------------------------------------------------------------------
2 Materials of Division 4.1 other than self-reactive substances and
solid desensitized explosives, and materials of Class 3 other than
liquid desensitized explosives.
* * * * *
23. In Sec. 173.4, paragraph (a)(1) introductory text is revised to
read as follows:
Sec. 173.4 Small quantity exceptions.
(a) * * *
(1) The maximum quantity of material per inner receptacle or
article is limited to:
* * * * *
24. In Sec. 173.24b, paragraph (e) would be added to read as
follows:
Sec. 173.24b Additional general requirements for bulk packagings.
* * * * *
(e) Specification packagings and UN standard packagings
manufactured outside the United States--(1) UN portable tanks. A UN
portable tank manufactured in the United States must conform in all
details to the applicable requirements in this part, the specification
requirements in part 178 of this subchapter and the retest requirements
in part 180 of this subchapter.
(2) UN portable tanks manufactured outside the United States. A UN
portable tank manufactured outside the United States, in accordance
with national or international regulations based on the UN
Recommendations on the Transport of Dangerous Goods and is an
authorized packaging, it may be filled, offered and transported in the
United States, if the Sec. 172.101 Table of this subchapter authorizes
the hazardous material and it conforms to the applicable T code and
tank provision codes assigned to the hazardous material in Column (7)
of the Table. In addition, the portable tank must be in accordance with
the following:
(i) Conform to applicable provisions in the UN Recommendations on
the Transport of Dangerous Goods (Incorporated by reference, see
Sec. 171.7 of this subchapter) and the requirements of this subpart;
(ii) Be capable of passing the prescribed tests in part 178 of this
subchapter applicable to the UN portable tank specification;
(iii) Be designed and manufactured according to the ASME Code
(Incorporated by reference, see Sec. 171.7 of this subchapter) or a
pressure vessel design code approved by the Associate Administrator;
(iv) Be approved by the Associate Administrator when the portable
tank is designed and constructed under the provisions of an alternative
arrangement (see Sec. 178.274(a)(2) of this subchapter); and
(v) When manufactured in a country other than the United States,
the competent authority of the country of manufacture must provide
reciprocal treatment for UN portable tanks manufactured in the United
States.
25. Section 173.32 would be revised to read as follows:
Sec. 173.32 Requirements for the use of portable tanks.
(a) General requirements. No person may offer a hazardous material
for transportation in a portable tank except as authorized by this
subchapter.
(1) Except as otherwise provided in this subpart, a portable tank
may not be used for the transportation of a hazardous material unless
it meets the requirements of this subchapter.
(2) No person may fill and offer for transportation a portable tank
when the prescribed periodic test or inspection under subpart G of part
180 of this subchapter has become due until the test or inspection has
been successfully completed. This requirement does not apply to any
portable tank filled prior to the test or inspection due date.
(3) When a portable tank is used as a cargo tank container, it
shall conform to all the requirements prescribed for cargo tank
containers. (See Sec. 173.33.)
(b) Substitute packagings. A particular Specification portable tank
may be substituted for another portable tank as follows:
(1) An IM or UN portable tank may be used whenever an IM or UN
portable tank having less stringent requirements is authorized provided
the portable tank meets or exceeds the requirements for pressure-relief
devices, bottom outlets and any other special provisions specified in
Sec. 172.102(c)(7)(vi) of this subchapter.
(2) Where a Specification IM101 or IM102 portable tank is
prescribed, a Specification 51 portable tank otherwise conforming to
the special commodity requirements of Sec. 172.102(c)(7) of this
subchapter may be used.
(3) A DOT Specification 51 portable tank may be used whenever a DOT
Specification 56, 57, or 60 portable tank is authorized. A DOT
Specification 60 portable tank may be used whenever a DOT Specification
56 or 57 portable tank is authorized. A higher integrity tank used
instead of a specified portable tank must meet the same design profile;
for example, a DOT Specification 51 portable tank must be lined if used
instead of a lined DOT Specification 60 portable tank.
(c) Grandfather provisions for portable tanks--(1) Continued use of
specification 56 and 57 portable tanks. Continued use of an existing
portable tank constructed to DOT Specification 56 or 57 is authorized
only for a tank constructed before October 1, 1996. A stainless steel
portable tank internally lined with polyethylene that was constructed
on or before October 1, 1996, and that meets all requirements of DOT
Specification 57 except for being equipped with a polypropylene
discharge ball valve and polypropylene secondary discharge opening
closure, may be marked as a Specification 57 portable tank and used in
accordance with the provisions of this section.
(2) A DOT Specification 51 and IM 101 or IM 102 portable tank may
not be manufactured after January 1, 2003 may continue to be used for
the transportation of a hazardous material provided they fulfill the
requirements of
[[Page 63411]]
this subchapter, including the specification requirements and the
requirements of this subchapter for the transportation of the
particular hazardous material (see Sec. 171.14(d)(5) of this
subchapter), and provided it conforms to the periodic inspection and
tests specified for the particular portable tank in subpart G of part
180 of this subchapter. On and after January 1, 2003, all newly
manufactured portable tanks must conform to the requirements for the
design, construction and approval of UN portable tanks as specified in
Secs. 178.273, 178.274, 178.275, 178.276 and 178.277 of this
subchapter.
(3) A DOT Specification portable tank manufactured prior to January
1, 1992 that is equipped with a non-reclosable pressure relief device
may continue in service for the hazardous materials for which it is
authorized. Except for a DOT Specification 56 or 57 portable tank, a
DOT Specification portable tank manufactured after January 1, 1992,
used for materials meeting the definition for Division 6.1 liquids,
Packing Group I or II, Class 2 gases, or Class 3 or 4 liquids, must be
equipped with a re-closing pressure relief valve having adequately
sized venting capacity.
(d) Maximum Allowable Working Pressure. (1) Prior to filling and
offering a portable tank for transportation, the shipper must confirm
that the portable tank conforms to the specification required for the
hazardous material and that the maximum allowable working pressure
(MAWP) of the portable tank is greater than or equal to the highest
pressure obtained under the following conditions:
(i) For compressed gases and certain refrigerated liquids that are
not cryogenic liquids and that are not transported in a UN portable
tank, the pressure prescribed in Sec. 173.315. For liquefied compressed
gases transported in a UN portable tank, the pressures prescribed in
T50 in Sec. 172.102 of this subchapter.
(ii) For liquid hazardous materials the pressures specified in
Sec. 178.275(a) of this subchapter used for determining the MAWP.
(iii) The maximum pressure used to load or unload the hazardous
material.
(2) Unless otherwise specified, where a portable tank is
authorized, the minimum tank design pressure is 172 kPa (25 psig) for
any Packing Group I or Packing Group II liquid hazardous material that
meets more than one hazard class definition.
(e) External inspection prior to filling. Each portable tank must
be given a complete external inspection. Any unsafe condition must be
corrected prior to its being offered for transportation. The external
inspection shall include a visual inspection of:
(1) The shell, piping, valves and other appurtenances for corroded
areas, dents, defects in welds and other defects such as missing,
damaged, or leaking gaskets;
(2) All flanged connections or blank flanges for missing or loose
nuts and bolts;
(3) All emergency devices for corrosion, distortion, or any damage
or defect that could prevent their normal operation;
(4) All required markings on the tank for legibility; and
(5) Any device for tightening manhole covers to ensure such devices
are operative and adequate to prevent leakage at the manhole cover.
(f) Loading requirements. (1) A hazardous material may not be
loaded in a portable tank if the part of the tank or any of its
appurtenances having contact with the material during transportation
would be damaged, would cause a dangerous reaction with the material or
would compromise the ability of the portable tank to retain the
hazardous material.
(2) A hazardous material may not be loaded in a portable tank
unless it has pressure relief devices providing total relieving
capacity meeting the requirements of this subchapter.
(3) Except during a hydrostatic test, a portable tank may not be
subjected to a pressure greater than its maximum allowable working
pressure.
(4) A portable tank may not be loaded to a gross weight greater
than the maximum allowable gross weight specified on its identification
plate.
(5) Except for a non-flowable solid or a liquid with a viscosity of
2,680 centistokes (millimeters squared per second) or greater at
20 deg.C (68 deg.F), a portable tank or compartment thereof having a
volume greater than 7,500 L (1,980 gallons) may not be loaded to a
filling density of more than 20% and less than 80% by volume. This
filling restriction does not apply if a portable tank is divided by
partitions or surge plates into compartments of not more than 7,500 L
(1,980) capacity. Portable tanks must not be offered for transportation
in an ullage condition liable to produce an unacceptable hydraulic
force due to surge.
(6) The outage for a portable tank may not be less than 2% at a
temperature of 50 deg.C (122 deg.F). For UN portable tanks, the
applicable maximum filling limits apply as specified according to the
assigned TP codes in Column (7) of the Sec. 172.101 Table of this
subchapter except when transported domestically.
(7) Each tell-tale indicator for the space between a frangible disc
and a safety relief valve mounted in series must be checked after the
tank is filled and prior to transportation to ensure that the frangible
disc is leak free. Any leakage through the frangible disc must be
corrected prior to offering the tank for transportation. The tell-tale
device must be designed to prevent the loss of any hazardous material
through the device itself while the tank is in transportation.
(8) During filling, the temperature of the hazardous materials
shall not exceed the limits of the design temperature range of the
portable tank.
(9) The maximum mass of liquefied compressed gas per liter (gallon)
of shell capacity (kg/L or lbs./gal.) may not exceed the density of the
liquefied compressed gas at 50 deg.C (122 deg.F). The portable tank
must not be liquid full at 60 deg.C (140 deg.F).
(g) Relief system. Any DOT Specification portable tank manufactured
prior to January 1, 1992 that is equipped with a non-reclosable
pressure relief device may continue in service for the hazardous
materials for which it it is authorized. Except for DOT Specification
56 and 57 portable tanks, any DOT Specification portable tank
manufactured after January 1, 1992 used for materials meeting the
definition for Division 6.1 liquids Packing Group I or II, Class 2
gases, or Class 3 or 4 liquids must be equipped with a reclosing
pressure relief valve having adequately sized venting capacity.
(h) Additional requirements for specific modal transport. In
addition to other applicable requirements, the following apply:
(1) A portable tank containing a hazardous material may not be
loaded on a highway or rail transport vehicle unless loaded entirely
within the horizontal outline thereof, without overhang or projection
of any part of the tank assembly. In addition, for unloading a portable
tank, see Sec. 177.834(h) of this subchapter.
(2) A portable tank used for the transportation of flammable
liquids by rail may not be fitted with non-reclosing pressure relief
devices except in series with reclosing pressure relief valves.
(3) A portable tank or Specification 106A or 110A multi-unit tank
car containing a hazardous material may not be offered for
transportation aboard a passenger vessel unless:
(i) The vessel is operating under a change to its character of
vessel certification as defined in Sec. 171.8 of this subchapter; and
[[Page 63412]]
(ii) The material is permitted to be transported aboard a passenger
vessel in the Sec. 172.101 Table of this subchapter.
(i) Additional general commodity specific requirements. In addition
to other applicable requirements, the following requirements apply:
(1) Each uninsulated portable tank used for the transportation of
liquefied compressed gases must have an exterior surface finish that is
significantly reflective, such as a light-reflecting color if painted,
or a bright reflective metal or other material if unpainted.
(2) If a hazardous material is being transported in a molten state,
the portable tank must be thermally insulated with suitable insulation
material of sufficient thickness that the overall thermal conductance
is not more than 0.080 Btu per hour per square foot per degree
Fahrenheit differential.
(j) Additional requirements for portable tanks other than IM
specification and UN portable tanks. (1) The bursting strength of any
piping and fittings must be at least four times the design pressure of
the tank, and at least four times the pressure to which, in any
instance, it may be subjected in service by the action of a pump or
other device (not including safety relief valves) that may subject
piping to pressures greater than the design pressure of the tank.
(2) Pipe joints must be threaded, welded or flanged. If threaded
pipe is used, the pipe and pipe fittings must not be lighter than
(Schedule 80) weight. Non-malleable metals must not be used in the
construction of valves or fittings. Where copper tubing is permitted,
joints must be brazed or be of equally strong metal union type. The
melting point of brazing material may not be lower than 1,000 deg.F
(537.8 deg.C). The method of joining tubing must not decrease the
strength of the tubing such as by the cutting of threads.
(3) Non-malleable metals may not be used in the construction of
valves or fittings.
(4) Suitable provision must be made in every case to allow for
expansion, contraction, jarring and vibration of all pipe. Slip joints
may not be used for this purpose.
(5) Piping and fittings must be grouped in the smallest practicable
space and must be protected from damage as required by the
specification.
(6) All piping, valves and fittings on every portable tank must be
leakage tested with gas or air after installation and proved tight at
not less than the design pressure of the portable tank on which they
are used. In the event of replacement, all such piping, valves, or
fittings so replaced must be tested in accordance with the requirements
of this section before the portable tank is returned to transportation
service. The requirements of this section apply to all hoses used on
portable tanks, except that hoses may be tested either before or after
installation on the portable tank.
(7) All materials used in the construction of portable tanks and
their appurtenances may not be subject to destructive attack by the
contents of the tank.
(8) All parts of the portable tanks and appurtenances for anhydrous
ammonia must be steel. No aluminum, copper, silver, zinc, nor their
alloys may be used. Brazed joints may not be used.
(9) Each outlet of a portable tank used for the transportation of
liquefied compressed gases, except carbon dioxide, must be provided
with a suitable automatic excess-flow valve (see definition in
Sec. 178.337-1(g) of this subchapter). These valves must be located
inside the portable tank or at a point outside the portable tank where
the line enters or leaves the portable tank. The valve seat must be
located inside the portable tank or may be located within a welded
flange or its companion flange, or within a nozzle or within a
coupling. The installation must be made in such a manner as to
reasonably assure that any undue strain which causes failure requiring
functioning of the valve shall cause failure in such a manner that it
will not impair the operation of the valve.
(i) Safety device connections and liquid level gauging devices that
are constructed so that the outward flow of tank contents willl not
exceed that passed by an opening of 0.1397 cm (0.0550 inches) are not
required to be equipped with excess-flow valves.
(ii) An excess-flow valve must close automatically if the flow
reaches the rated flow of gas or liquid specified by the original valve
manufacturer when piping mounted directly on the valve is sheared off
before the first valve, pump, or fitting downstream from the excess
flow valve.
(iii) An excess-flow valve may be designed with a by-pass, not to
exceed a 0.1016 cm (0.040 inches) diameter opening to allow
equalization of pressure.
(iv) Filling and discharge lines must be provided with manually
operated shut-off valves located as close to the tank as practical. The
use of ``Stop-Check'' valves to satisfy with one valve the requirements
of this section is forbidden.
(10) Each portable tank used for carbon dioxide and nitrous oxide
must be lagged with a suitable insulation material of such thickness
that the overall thermal conductance is not more than 0.08 Btu per
square foot per degree Fahrenheit differential in temperature per hour.
The conductance must be determined at 60 deg. Fahrenheit. Insulation
material used on portable tanks for nitrous oxide must be
noncombustible.
(11) A refrigerating and/or heating coil or coils must be installed
in portable tanks used for carbon dioxide and nitrous oxide. Such coils
must be tested externally to at least the same pressure as the test
pressure of the portable tank. The coils must also be tested internally
to at least twice the working pressure of the heating or refrigerating
system to be used, but in no case less than the test pressure of the
portable tank. Such coils must be securely anchored. The refrigerant or
heating medium to be circulated through the coil or coils must be such
as to cause no adverse chemical reaction with the portable tank or its
contents in the event of leakage.
Sec. 173.32a [Removed]
26. Sec. 173.32a would be removed.
Sec. 173.32b [Removed]
27. Sec. 173.32b would be removed.
Sec. 173.32c [Removed]
28. Sec. 173.32c would be removed.
29. In Sec. 173.61, paragraph (e)(3) would be revised and a new
paragraph (e)(8) would be added to read as follows:
Sec. 173.61 Mixed packaging requirements.
* * * * *
(e) * * *
(3) Explosives of compatibility group S may be packaged together
with explosives of all other compatibility groups except A and L, and
the entire package shall be treated as belonging to any of the packaged
compatibility groups except S.
* * * * *
(8) Explosive articles of compatibility groups C, D, E and G,
except for fireworks and articles requiring special packaging, may be
packaged together and the entire package shall be treated as belonging
to compatibility group E.
Sec. 173.62 [Amended]
30. In Sec. 173.62, in paragraph (c), in the Explosives Packing
Instructions Table, in the fourth column, the following changes would
be made in appropriate packaging specification number order:
a. For packing instruction entries, 112(a), 112(b), 112(c), 113,
115, 116, 130, 131, 134, 135, 136, 138, 140, 141, 142 and 144, under
the word ``Drums'', the wording ``plywood (1D)'' would be added in the
alpha-numeric order of the parenthetical.
[[Page 63413]]
b. For the packing instruction entries, 112(c), 113, 115, 134, 138
and 140, under the word ``Drums'', the wording ``plastics, removable
head (1H2)'' would be added in the alpha-numeric order of the
parenthetical.
c. For the packing instruction entries, 134 and 138, under the word
``Drums'', the wording ``fiberboard (1G)'' would be added in the alpha-
numeric order of the parenthetical.
d. For the packing instruction entry, 144, under the wording
``plastics, expanded (4H1)'', the word ``Drums.'' would be added and
under the new word ``Drums.'', the wording, ``steel, removable head
(1A2)'', ``Aluminum, removable head (1B2)'' and ``plastics, removable
head (1H2)'' would be added in the alpha-numeric order of the
parenthetical.
e. For the packing instruction entry, 144, under the word
``Boxes'', the wording ``plastics, solid (4H2)'' would be added in the
alpha-numeric order of the parenthetical.
f. For the packing instruction entries, 112(c) and 113, under the
word ``Boxes'', the wording ``aluminum (4B)'' would be added in the
alpha-numeric order of the parenthetical.
31. In Sec. 173.128, paragraph (d)(1)(ii) would be revised to read
as follows:
Sec. 173.128 Class 5, Division 5.2--Definitions and types.
* * * * *
(a) * * *
(1) * * *
(ii) A mixture of organic peroxides prepared according to
Sec. 173.225(c)(3); or
* * * * *
32. In Sec. 173.150, paragraph (d)(2) is revised to read as
follows:
Sec. 173.150 Exceptions for Class 3 (flammable) and combustible
liquids.
* * * * *
(d) * * *
(2) Is in an inner packaging of five liters (1.3 gallons) or less,
and is not transported as checked or carry-on baggage by passenger
aircraft, except as provided in Sec. 175.10(a)(17) of this subchapter;
or
* * * * *
33. In Sec. 173.162, paragraph (a) introductory text and (a)(1)
would be revised to read as follows:
Sec. 173.162 Gallium.
(a) Except when packaged in cylinders or steel flasks, gallium must
be packaged in packagings which meet the requirements of part 178 of
this subchapter at the Packing Group I performance level for
transportation by aircraft, and at the Packing Group III performance
level for transport by highway, rail or vessel, as follows:
(1) In combination packagings intended to contain liquids
consisting of glass, earthenware or rigid plastic inner packagings with
a maximum net mass of 15 kg (33 pounds) each. The inner packagings must
be packed in wood boxes (4C1, 4C2, 4D, 4F), fiberboard boxes (4G),
plastic boxes (4H1, 4H2), fiber drums (1G) or removable head steel and
plastic drums or jerricans (1A2, 1H2, 3A2 or 3H2) with sufficient
cushioning materials to prevent breakage. Either the inner packagings
or the outer packagings must have inner liners or bags of strong
leakproof and puncture-resistant material impervious to the contents
and completely surrounding the contents to prevent it from escaping
from the package, irrespective of its position.
* * * * *
34. In Sec. 173.185, a new sentence would be added at the end of
paragraph (a), paragraphs (b) introductory text, (b)(1), (b)(2),
(b)(5), (c)(1), (c)(2), and (c)(3) would be revised, and a heading
would be added to paragraph (c) to read as follows:
Sec. 173.185 Lithium batteries and cells.
(a) * * * For the purposes of this subchapter, ``lithium content''
means the mass of lithium in the anode of a lithium metal or lithium
alloy cell, except in the case of a lithium ion cell where the
``equivalent lithium content'' in grams is calculated to be 0.3 times
the rated capacity in ampere-hours.
(b) Exceptions. Cells and batteries are not subject to the
requirements of this subchapter if they meet the following
requirements:
(1) Each cell with a liquid cathode may contain no more than 0.5 g
of lithium content. Each cell with a solid cathode may contain no more
than 1.0 g lithium content. Each lithium ion cell may contain no more
than 1.5 g of equivalent lithium content;
(2) Each battery with a liquid cathode may contain an aggregate
quantity of no more than 1.0 g lithium content. Each battery with a
solid cathode may contain an aggregate quantity of no more than 2.0 g
of lithium content. Each lithium-ion battery may contain an aggregate
quantity of no more than 8.0 grams of equivalent lithium content;
* * * * *
(5) If when fully charged, the aggregate lithium content of the
anodes in a liquid cathode battery is more than 0.5 g, or the aggregate
lithium content of the anodes in a solid cathode battery is more than
1.0 g, then the battery may not contain a liquid or gas that is a
hazardous material according to this subchapter unless the liquid or
gas, if free, would be completely absorbed or neutralized by other
materials in the battery.
(c) Additional exceptions. * * *
(1) The lithium content of the anode of each cell, when fully
charged, is not more than 5 g;
(2) The aggregate lithium content of the anodes of each battery,
when fully charged, is not more than 25 g;
(3) Each cell or battery is of the type proven to be non-dangerous
by testing in accordance with tests in the UN Manual of Tests and
Criteria (incorporated by reference, see Sec. 171.7 of this
subchapter). Such testing must be carried out on each type of cell or
battery prior to the initial transport of that type; and
* * * * *
35. In Sec. 173.224, paragraph (b)(4) would be revised; in the
table following paragraph (b)(7), the following entry would be added in
the appropriate alphabetical order; and paragraph (d) would be removed,
to read as follows:
Sec. 173.224 Packaging and control and emergency temperatures for
self-reactive materials.
* * * * *
(b) * * *
(4) Packing method. Column 4 specifies the highest packing method
which is authorized for the self-reactive material. A packing method
corresponding to a smaller package size may be used, but a packing
method corresponding to a larger package size may not be used. The
Table of Packing Methods in Sec. 173.225(d) defines the packing
methods. Bulk packagings are authorized as specified in Sec. 173.225(d)
for Type F self-reactive substances. Additional bulk packagings are
authorized if approved by the Associate Administrator.
* * * * *
(7) * * *
[[Page 63414]]
Self-Reactive Substances
--------------------------------------------------------------------------------------------------------------------------------------------------------
Identification Packing Control temperature-- Emergency
Self-reactive substance No. Concentration--(%) method ( deg.C) temperature Notes
(1) (2) (3) (4) (5) (6) (7)
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * * * *
2,2'-Azodi(isobutyronitrile) as a water based paste 3224 50% OP6 ..................... ............ ............
* * * * * * *
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * *
36. In Sec. 173.225, in paragraph (b), in the Organic Peroxide
Table, the following entries would be removed and added in the
appropriate alphabetical order; in Column (8), ``7'' and ``10'' would
be removed each place they appear; and in the ``NOTES'' immediately
following the Table, Notes ``7'' and ``10'' would be removed and
reserved and Notes ``26'' and ``27'' would be added in the appropriate
numerical order; and paragraphs (e) introductory text, (e)(3), and
(e)(5) would be revised to read as follows:
Sec. 173.225 Packaging requirements and other provisions for organic
peroxides.
* * * * *
(b) * * *
Organic Peroxide Table
--------------------------------------------------------------------------------------------------------------------------------------------------------
Diluent (mass %) Temperature (
ID Concentration ------------------------ Water deg.C)
Technical name number (mass %) (mass Packing method -------------------- Note
A B I %) Control Emergency
(1) (2) (3) (4a) (4b) (4c) (5) (6) (7a) (7b) (8)
--------------------------------------------------------------------------------------------------------------------------------------------------------
* * * * * * *
[REMOVE:]
tert-Amyl peroxybenzoate................ UN3105 96 32 ...... 42 ...... ...... ...... ....... OP8 0 10
stable dispersion in water].
* * * * * * *
tert-Butyl peroxyneoheptanoate.......... UN3115 77 27 ...... 77 72 ...... 90-100 ...... ...... ...... ....... OP5
trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,5,5- UN3103 >57-90 57 ...... ...... 57 32 77 ...... 52 ...... 10 ...... ...... ...... ....... OP7 20 25 .......
ethylhexanoylperoxy)hexane. 0
* * * * * * *
Dimyristyl peroxydicarbonate [as a UN3119 42 ...... ...... ...... ....... IBC 15 25 10
stable dispersion in water].
* * * * * * * -
Di-n-propyl peroxydicarbonate........... UN3113 10 ...... ...... ...... ....... OP4 -25 -15 .......
0
* * * * * * *
Di-(3,5,5-trimethylhexanoyl) peroxide... UN3119 38 32 1 n38
[and] Di-isopropyl peroxydicarbonate. 5-18
+1
2-15
* * * * * * *
2,4,4-Trimethylpentyl-2- UN3115 72 ...... 52 ...... ...... ...... ....... OP8 -5 5
peroxyneodecanoate [as a stable
dispersion in water]..
2,4,4-Trimethylpentyl-2-peroxy UN3115 37 ...... 10 ...... ...... ...... ....... OP5 ....... ......... .......
0
* * * * * * *
tert-Butyl peroxy-2-ethylhexanoate...... UN3119 32 ...... 52 ...... ...... ...... ....... OP8 0 10 .......
stable dispersion in water].
* * * * * * *
tert-Butyl peroxyneodecanoate [as a UN3119 42 ...... ...... ...... ....... IBC -5 5 10
stable dispersion in water].
* * * * * * *
tert-Butyl peroxyneodecanoate........... UN3119 32 77 27 ...... 52 ...... ...... ...... ....... IBC -15 -5 .......
dispersion in water].
* * * * * * *
Cumyl peroxyneoheptanoate............... UN3115 77 72 90-100 ...... ...... ...... ....... OP5 ....... ......... .......
trimethylcyclohexane.
1,1-Di-(tert-butylperoxy)-3,3,5- UN3103 >57-90 77 ...... 57 ...... ...... 57 32 ...... 52 ...... ...... ...... ....... IBC -20 -10 .......
stable dispersion in water].
* * * * * * *
Di-(2-ethoxyethyl) peroxydicarbonate.... UN3115 52 ...... 77 ...... ...... ...... ....... OP8 -15 -5 .......
a stable dispersion in water]. 62
* * * * * * *
Diisopropyl peroxydicarbonate........... UN3115 52 ...... ...... ...... 18
+ 4
* * * * * * *
2,5-Dimethyl-2,5-di-(tert- UN3108 77 ...... ...... 86-100 ...... ...... ...... ....... OP5 ....... ......... .......
butylperoxy)hexyne-3.
* * * * * * *
Dimyristyl peroxydicarbonate [as a UN3119 42 ...... ...... ...... ....... IBC 15 20 10
stable dispersion in water].
* * * * * * *
Di-n-propyl peroxydicarbonate........... UN3113 10 ...... ...... ...... ....... OP3 -25 -15 .......
0
* * * * * * *
Di-n-propyl peroxydicarbonate........... UN3113 77 ...... 71 72 ...... 37 72 ...... 52 ...... ...... ...... ....... IBC -5 -5 -10
peroxyneodecanoate [as a stable
dispersion in water].
1,1,3,3-Tetramethylbutyl peroxy UN3115 37 ...... 42 10%.
27. Available oxygen must be 7.6%.
* * * * *
(e) Bulk packagings for organic peroxides. The following bulk
packagings are authorized:
* * * * *
(3) Portable tanks. The following requirements apply to portable
tanks intended for the transport of Type F organic peroxides or Type F
self-reactive substances. DOT 51, 57, IM 101 portable tanks, and UN
portable tanks that conform to the requirements of T23 (see
Sec. 172.102(c)(7) of this subchapter), when T23 is specified in Column
(7) of the Sec. 171.101 Table of this subchapter for the Type F organic
peroxide or Type F self-reactive substance. Type F organic peroxide or
self-reactive substance formulations other than those indicated in T23
may be transported in portable tanks if approved by the Associate
Administrator. The following conditions also apply:
(i) The portable tank must be designed for a test pressure of at
least 0.4 MPa (4 bar).
(ii) Portable tanks must be fitted with temperature-sensing
devices.
(iii) Portable tanks must be fitted with pressure relief devices
and emergency-relief devices. Vacuum-relief devices may also be used.
Pressure relief devices must operate at pressures determined according
to both the properties of the hazardous material and the construction
characteristics of the portable tank. Fusible elements are not allowed
in the shell.
(iv) The pressure relief devices must consist of reclosing devices
fitted to prevent significant build-up within the portable tank of the
decomposition products and vapors released at a temperature of 50
deg.C (122 deg.F). The capacity and start-to-discharge pressure of the
relief devices must be in accordance with the applicable requirements
of this subchapter specified for the portable tank. The start-to-
discharge pressure must in no case be such that liquid would escape
from the pressure relief devices if the portable tank were overturned.
(v)(A) The emergency-relief devices may be of the reclosing or
frangible types, or a combination of the two, designed to vent all the
decomposition products and vapors evolved during a period of not less
than one hour of complete fire engulfment as calculated by the
following formula:
[GRAPHIC] [TIFF OMITTED] TP23OC00.004
Where:
q = heat absorption (W)
A = wetted area (m2)
(B) Insulation factor (F) in the formula in paragraph (e)(3)(v)(A)
of this section equals 1 for non-insulated vessels and for insulated
vessels F is calculated using the following formula:
[GRAPHIC] [TIFF OMITTED] TP23OC00.005
Where:
U = K/L = heat transfer coefficient of the insulation
(Wm-2K-1); where K = heat
conductivity of insulation layer
(Wm-1K-1), and L =
thickness of insulation layer (m).
TPO = temperature of material at relieving conditions
(K).
(vi) The start-to-discharge pressure of emergency-relief devices
must be higher than that specified for the pressure relief devices in
paragraph (e)(3)(iv) of this section. The emergency-relief devices must
be sized and designed in such a way that the maximum pressure in the
shell never exceeds the test pressure of the portable tank.
Note to Paragraph (e)(3)(vi): An example of a method to
determine the size of emergency-relief devices is given in Appendix
5 of the UN Manual of Tests and Criteria (incorporated by reference,
see Sec. 171.7 of this subchapter).
(vii) For insulated portable tanks, the capacity and setting of
emergency-relief devices must be determined assuming a loss of
insulation from 1 percent of the surface area.
(ix) Vacuum-relief devices and reclosing devices on portable tanks
used for flammable hazardous materials must be provided with flame
arresters. Any reduction of the relief capacity caused by the flame
arrester must be taken into account and the appropriate relief capacity
must be provided.
(x) Service equipment such as devices and external piping must be
designed and constructed so that no hazardous material remains in them
after filling the portable tank.
(xi) Portable tanks may be either insulated or protected by a sun-
shield. If the SADT of the hazardous material in the portable tank is
55 deg.C (131 deg.F) or less, the portable tank must be completely
insulated. The outer surface must be finished in white or bright metal.
(xii) The degree of filling must not exceed 90% at 15 deg.C (59
deg.F).
(xiii) DOT 57 metal portable tanks are authorized only for tert-
butyl cumyl peroxide, di-(2-tert-butylperoxyisopropyl-benzene(s),
dicumyl peroxide and mixtures of two or more of these peroxides.
* * * * *
(5) IBCs. IBCs are authorized subject to the conditions and
limitations of this section provided the IBC type is authorized
according to IB52 (see 172.102(c)(4) of this subchapter), as
applicable, and the IBC conforms to the requirements in part 178 of
this subchapter at the Packing Group II performance level. The
following additional requirements also apply:
(i) IBCs shall be provided with a device to allow venting during
transportation. The inlet to the pressure
[[Page 63417]]
relief device shall be sited in the vapor space of the IBC under
maximum filling conditions during transportation.
(ii) To prevent explosive rupture of metal IBCs or composite IBCs
with complete metal casing, the emergency-relief devices shall be
designed to vent all the decomposition products and vapors evolved
during self-accelerating decomposition or during a period of not less
than one hour of complete fire-engulfment as calculated by the formula
in paragraph (e)(3)(v) of this section. The control and emergency
temperatures specified in IB52 are based on a non-insulated IBC.
37. In Sec. 173.240, paragraphs (c) and (d) would be revised to
read as follows:
Sec. 173.240 Bulk packagings for certain low hazard solid materials.
* * * * *
(c) Portable tanks and closed bulk bins. DOT 51, 56, 57 and 60
portable tanks; IMO type 1, 2 and 5, and IM 101 and IM 102 portable
tanks; UN portable tanks; marine portable tanks conforming to 46 CFR
part 64; and sift-proof non-DOT Specification portable tanks and closed
bulk bins are authorized.
(d) IBCs. IBCs are authorized subject to the conditions and
limitations of this section provided the IBC type is authorized
according to the IBC packaging code specified for the specific
hazardous material in Column (7) of the Sec. 172.101 Table of this
subchapter and the IBC conforms to the requirements in part 178 of this
subchapter at the Packing Group performance level as specified in
Column (5) of the Sec. 172.101 Table of this subchapter for the
material being transported.
(1) IBCs may not be used for the following hazardous materials:
(i) Packing Group I liquids; and
(ii) Packing Group I solids that may become liquid during
transportation.
(2) The following IBCs may not be used for Packing Group II and III
solids that may become liquid during transportation:
(i) Wooden: 11C, 11D and 11;
(ii) Fiberboard: 11G;
(iii) Flexible: 13H1, 13H2, 13H3, 13H4, 13H5, 13L1, 13L2, 13L3,
13L4, 13M1 and 13M2; and
(iv) Composite: 11HZ2 and 21HZ2.
38. In Sec. 173.241, paragraphs (c) and (d) would be revised to
read as follows:
Sec. 173.241 Bulk packagings for certain low hazard liquid and solid
materials.
* * * * *
(c) Portable tanks. DOT Specification 51, 56, 57 and 60 portable
tanks; IMO type 1, 2 and 5, and IM 101 and IM 102 portable tanks; UN
portable tanks; marine portable tanks conforming to 46 CFR part 64; and
non-DOT Specification portable tanks suitable for transport of liquids
are authorized.
(d) IBCs. IBCs are authorized subject to the conditions and
limitations of this section provided the IBC type is authorized
according to the IBC packaging code specified for the specific
hazardous material in Column (7) of the Sec. 172.101 Table of this
subchapter and the IBC conforms to the requirements in part 178 of this
subchapter at the Packing Group performance level as specified in
Column (5) of the Sec. 172.101 Table for the material being
transported.
(1) IBCs may not be used for the following hazardous materials:
(i) Packing Group I liquids; and
(ii) Packing Group I solids that may become liquid during
transportation.
(2) The following IBCs may not be used for Packing Group II and III
solids that may become liquid during transportation:
(i) Wooden: 11C, 11D and 11F;
(ii) Fiberboard: 11G;
(iii) Flexible: 13H1, 13H2, 13H3, 13H4, 13H5, 13L1, 13L2, 13L3,
13L4, 13M1 and 13M2; and
(iv) Composite: 11HZ2 and 21HZ2.
39. In Sec. 173.242, paragraphs (c) introductory text and (d) would
be revised to read as follows:
Sec. 173.242 Bulk packagings for certain medium hazard liquids and
solids, including solids with dual hazards.
* * * * *
(c) Portable tanks. DOT Specification 51, 56, 57 and 60 portable
tanks; Specification IM and UN portable tanks when a T Code is
specified in Column (7) of the Sec. 172.101 Hazardous Materials Table
for a specific hazardous material; and marine portable tanks conforming
to 46 CFR part 64 are authorized. DOT Specification 57 portable tanks
used for the transport by vessel of Class 3, Packaging Group II
materials must conform to the following:
* * * * *
(d) IBCs. IBCs are authorized subject to the conditions and
limitations of this section provided the IBC type is authorized
according to the IBC packaging code specified for the specific
hazardous material in Column (7) of the Sec. 172.101 Table of this
subchapter and the IBC conforms to the requirements in part 178 of this
subchapter at the Packing Group performance level as specified in
Column (5) of the Sec. 172.101 Table of this subchapter for the
material being transported.
(1) IBCs may not be used for the following hazardous materials:
(i) Packing Group I liquids; and
(ii) Packing Group I solids that may become liquid during
transportation.
(2) The following IBCs may not be used for Packing Group II and III
solids that may become liquid during transportation:
(i) Wooden: 11C, 11D and 11F;
(ii) Fiberboard: 11G;
(iii) Flexible: 13H1, 13H2, 13H3, 13H4, 13H5, 13L1, 13L2, 13L3,
13L4, 13M1 and 13M2; and
(iv) Composite: 11HZ2 and 21HZ2.
* * * * *
40. In Sec. 173.243, paragraphs (c) and (d) would be revised to
read as follows:
Sec. 173.243 Bulk packaging for certain high hazard liquids and dual
hazard materials which pose a moderate hazard.
* * * * *
(c) Portable tanks. DOT Specification 51 and 60 portable tanks; UN
portable tanks when a T code is specified in Column (7) of the
Sec. 172.101 Table of this subchapter for a specific hazardous
material; and marine portable tanks conforming to 46 CFR part 64 with
design pressure of at least 172.4 kPa (25 psig) are authorized.
(d) IBCs. IBCs are authorized subject to the conditions and
limitations of this section provided the IBC type is authorized
according to the IBC packaging code specified for the specific
hazardous material in Column (7) of the Sec. 172.101 Table of this
subchapter and the IBC conforms to the requirements in part 178 of this
subchapter at the Packing Group performance level as specified in
Column (5) of the Sec. 172.101 Table of this subchapter for the
material being transported.
(1) IBCs may not be used for the following hazardous materials:
(i) Packing Group I liquids; and
(ii) Packing Group I solids that may become liquid during
transportation.
(2) The following IBCs may not be used for Packing Group II and III
solids that may become liquid during transportation:
(i) Wooden: 11C, 11D and 11F;
(ii) Fiberboard: 11G;
(iii) Flexible: 13H1, 13H2, 13H3, 13H4, 13H5, 13L1, 13L2, 13L3,
13L4, 13M1 and 13M2, and
(iv) Composite: 11HZ2 and 21HZ2.
* * * * *
41. In Sec. 173.247, paragraph (c) would be revised to read as
follows:
Sec. 173.247 Bulk packaging for certain elevated temperature materials
(Class 9) and certain flammable elevated temperature materials (Class
3).
* * * * *
(c) Portable tanks. DOT Specification 51, 56, 57 and 60 portable
tanks; IM 101, 102 portable tanks; UN portable tanks; marine portable
tanks conforming to 46 CFR part 64; metal IBCs and non-
[[Page 63418]]
specification portable tanks equivalent in structural design and
accident damage resistance to specification packagings are authorized.
* * * * *
42. In Sec. 173.306, paragraph (a)(4)(iii) would be revised to read
as follows:
Sec. 173.306 Limited quantities of compressed gases.
(a) * * *
(4) * * *
(iii) Non-pressurized gases, flammable must be packed in
hermetically-sealed glass or metal inner packagings of not more than 5
L (1.3 gallons) overpacked in a strong outer packaging.
* * * * *
43. In Sec. 173.315, the text of paragraph (a) preceding the table
and paragraphs (i)(1)((iii), (i)(3), (i)(4) and (i)(8) would be revised
and paragraph (i)(7) would be removed and reserved to read as follows:
Sec. 173.315 Compressed gases in cargo tanks and portable tanks.
(a) Liquefied compressed gases that are transported in UN portable
tanks must be loaded and offered for transportation in accordance with
tank provision T50 in Sec. 172.102 of this subchapter. A liquefied
compressed gas offered for transportation in a cargo tank motor vehicle
or a portable tank must be prepared in accordance with this section,
Sec. 173.32, Sec. 173.33 and subpart E or subpart G of part 180 of this
subchapter; for cryogenic liquids, also see Sec. 173.326 and
Sec. 173.328. Except for UN portable tanks, a liquefied compressed gas
must be loaded and offered for transportation in accordance with the
following table:
* * * * *
(i) * * *
(1) * * *
(iii) For an insulated tank, the required relieving capacity of the
relief valves must be the same as for an uninsulated tank, unless the
insulation will remain in place and will be effective under fire
conditions. In this case, except for UN portable tanks, each insulated
tank must be covered by a sheet metal jacket of not less than 16 gauge
thickness. For UN portable tanks where the relieving capacity of the
valves has been reduced on the basis of the insulation system, the
insulation system must remain effective at all temperatures less than
649 deg.C (1200.2 deg.F) and be jacketed with a material having a
melting point of 700 deg.C (1292.0 deg.F) or greater.
* * * * *
(3) Each safety relief valve on a portable tank, other than a UN
portable tank, must be set to start-to-discharge at pressure no higher
than 110% of the tank design pressure and no lower than the design
pressure specified in paragraph (a) of this section for the gas
transported. For UN portable tanks used for liquefied compressed gases
and constructed in accordance with the requirements of Sec. 178.276 of
this subchapter, the pressure relief device(s) must conform to
Sec. 178.276(e) of this subchapter.
(4) Except for UN portable tanks, each safety relief valve must be
plainly and permanently marked with the pressure in p.s.i.g. at which
it is set to discharge, with the actual rate of discharge of the device
in cubic feet per minute of the gas or of air at 60 deg.F (15.6
deg.C) and 14.7 p.s.i.a., and with the manufacturer's name or trade
name and catalog number. The start-to-discharge valve must be visible
after the valve is installed. The rated discharge capacity of the
device must be determined at a pressure of 120% of the design pressure
of the tank. For UN portable tanks, each pressure relief device must be
clearly and permanently marked as specified in Sec. 178.274(f)(1) of
this subchapter.
* * * * *
(8) Each safety relief valve outlet must be provided with a
protective device to prevent the entrance and accumulation of dirt and
water. This device must not impede flow through the valve. Pressure
relief devices must be designed to prevent the entry of foreign matter,
the leakage of liquid and the development of any dangerous excess
pressure.
* * * * *
PART 175--CARRIAGE BY AIRCRAFT
44. The authority citation for Part 175 would continue to read as
follows:
Authority: 49 U.S.C. 5101-5127; 49 CFR 1.53.
45. In Sec. 175.10, paragraphs (a)(10) and (a)(16) would be
revised, and paragraph (a)(17) would be added to read as follows:
Sec. 175.10 Exceptions.
(a) * * *
(10) Safety matches or a lighter intended for use by an individual
when carried on one's person. However, lighters containing unabsorbed
liquid fuel (other than liquefied gas), lighter fuel, and lighter
refills are not permitted on one's person or in checked or carry-on
baggage.
* * * * *
(16) Perfumes and colognes, purchased through duty-free sales,
carried by passengers or crew in carry-on baggage.
(17) Alcoholic beverages containing--
(i) Not more than 24% alcohol by volume; or
(ii) More than 24% and not more than 70% alcohol by volume when in
retail packagings not exceeding 5 liters (1.3 gallons) carried by a
crewmember or passenger in checked or carry-on baggage, with a total
net quantity per person of 5 liters (1.3 gallons) for such beverages.
* * * * *
46. In Sec. 175.33, paragraph (a) introductory text would be
revised to read as follows:
Sec. 175.33 Notification of pilot-in-command.
(a) Except as provided in Sec. 175.10, when a hazardous material
subject to the provisions of this subchapter is carried in an aircraft,
the operator of the aircraft must provide the pilot-in-command with
accurate and legible written information as early as practicable before
departure of the aircraft, which specifies at least the following:
* * * * *
47. Section 175.78 would be revised to read as follows:
Sec. 175.78 Stowage compatibility of cargo.
(a) For stowage on an aircraft, in a cargo facility, or in any
other area at an airport designated for the stowage of hazardous
materials, packages containing hazardous materials which might react
dangerously with one another may not be placed next to each other or in
a position that would allow a dangerous interaction in the event of
leakage.
(b) As a minimum, the segregation instructions prescribed in the
following Segregation Table must be followed to maintain acceptable
segregation between packages containing hazardous materials with
different hazards. The Segregation Table instructions in paragraph (c)
of this section apply whether or not the class or division is the
primary or subsidiary risk. The Segregation Table follows:
[[Page 63419]]
Segregation Table
--------------------------------------------------------------------------------------------------------------------------------------------------------
Class or division
Hazard label -------------------------------------------------------------------------------------------------------
1 2 3 4.2 4.3 5.1 5.2 8
--------------------------------------------------------------------------------------------------------------------------------------------------------
1............................................... Note 1 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2 Note 2
1............................................... Note 2 ........... ........... ........... ........... ........... ........... ...........
2............................................... Note 2 ........... ........... ........... ........... ........... ........... ...........
3............................................... Note 2 ........... ........... ........... ........... X ........... ...........
4.2............................................. Note 2 ........... ........... ........... ........... X ........... ...........
4.3............................................. Note 2 ........... ........... ........... ........... X ........... X
5.1............................................. Note 2 ........... X X ........... ........... ........... ...........
5.2............................................. Note 2 ........... ........... ........... ........... ........... ........... ...........
8............................................... Note 2 ........... ........... ........... X ........... ........... ...........
--------------------------------------------------------------------------------------------------------------------------------------------------------
(c) Instructions for using the Segregation Table are as follows:
(1) The dots at the intersection of a row and column indicate that
no restrictions apply.
(2) The letter ``X'' at the intersection of a row and column
indicates that packages containing these classes of hazardous materials
may not be stowed next to or in contact with each other, or in a
position which would allow interaction in the event of leakage of the
contents.
(3) Note 1. ``Note 1'' at the intersection of a row and column
means the following:
(i) For explosives in compatibility groups A through K and N--
(A) Packages bearing the same compatibility group letter and the
same division number may be stowed together.
(B) Explosives of the same compatibility group, but different
divisions may be stowed together provided the whole shipment is treated
as belonging to the division having the smaller number. However, when
explosives of Division 1.5 Compatibility Group D are stowed together
with explosives of Division 1.2 Compatibility Group D, the whole
shipment must be treated as Division 1.1, Compatibility Group D.
(C) Packages bearing different compatibility group letters may not
be stowed , whether or not they belong to the same division, except as
provided in paragraphs (c)(3)(ii) and (iii) of this section.
(ii) Explosives in Compatibility Group L may not be stowed with
explosives in other compatibility groups. They may only be stowed with
the same type of explosives in Compatibility Group L.
(iii) Explosives of Division 1.4, Compatibility Group S, may be
stowed with explosives of all compatibility groups except for
Compatibility Groups A and L.
(iv) Other than explosives of Division 1.4, Compatibility Group S
(see paragraph (c)(3)(iii) of this section), and Compatibility Groups
C, D and E that may be stowed together, explosives that do not belong
in the same compatibility group may not be stowed together.
(A) Any combination of substances in Compatibility Groups C and D
must be assigned to the most appropriate compatibility group shown in
the Sec. 172.101 Hazardous Materials Table.
(B) Explosives in Compatibility Group N may be stowed together with
explosives in Compatibility Groups C, D and E when the combination is
assigned Compatibility Group D.
(4) Note 2. ``Note 2'' at the intersection of a row and column
means that other than explosives of Division 1.4, Compatibility Group
S, explosives may not be stowed together with that class.
(5) Packages containing hazardous materials with multiple hazards
in the class or divisions, which require segregation in accordance with
the Segregation Table need not be segregated from other packages
bearing the same UN number.
(6) A package labeled ``BLASTING AGENT'' may not be stowed next to
or in a position that will allow contact with a package of special
fireworks or railway torpedoes.
48. In Sec. 175.85 paragraph (a) would be revised to read as
follows:
Sec. 175.85 Cargo location.
(a) Except as provided in Sec. 175.10, no person may carry a
hazardous material subject to the requirements of this subchapter in
the cabin of a passenger-carrying aircraft or on the flight deck of any
aircraft. Hazardous materials may be carried in a main deck cargo
compartment of a passenger aircraft provided that the compartment is
inaccessible to passengers and that it meets all certification
requirements for a Class B aircraft cargo compartment in 14 CFR
25.857(b) or for a Class C aircraft cargo compartment in 14 CFR
25.857(c).
* * * * *
PART 176--CARRIAGE BY VESSEL
49. The authority citation for part 176 would continue to read as
follows:
Authority: 49 U.S.C. 5101-5127; 49 CFR 1.53.
50. In Sec. 176.2, the following definition would be added in
appropriate alphabetical order to read as follows:
Sec. 176.2 Definitions.
* * * * *
INF cargo means packaged irradiated nuclear fuel, plutonium or
high-level radioactive wastes as those terms are defined in the
``International Code for the Safe Carriage of Packaged Irradiated
Nuclear Fuel, Plutonium and High-Level Radioactive Wastes on Board
Ships'' (incorporated by reference, see Sec. 171.7 of this subchapter).
* * * * *
51. In Sec. 176.63, a new paragraph (e) would be added to read as
follows:
Sec. 176.63 Stowage locations.
* * * * *
(e) Closed cargo transport unit, for the purpose of stowage of
Class 1 (explosive) materials on board a vessel, means a clean,
substantial, weatherproof box structure which can be secured to the
ship's structure and includes a closed freight container, a closed
vehicle, a closed rail wagon or a portable magazine. When this stowage
is specified, stowage in small compartments such as deckhouses and mast
lockers or oversized weatherproof packages (overpacks) are acceptable
alternatives. The floor of any closed cargo transport unit or
compartment shall be constructed of wood, close boarded or arranged so
that goods are stowed on sparred gratings, wooden pallets or dunnage.
Provided that the necessary additional specifications are met, a closed
cargo transport unit may be used for Class 1 (explosive) magazine
stowage type ``A,'' ``B'' or ``C,'' but not as a portable magazine.
52. In Sec. 176.84, in paragraph (b) Table of provisions, the
entries ``4'' and ``5''
[[Page 63420]]
would be revised, paragraph (c)(1) would be revised, in paragraph
(c)(2), the List of Notes would be revised and paragraph (c)(3) would
be removed to read as follows:
Sec. 176.84 Other requirements for stowage and segregation for cargo
vessels and passenger vessels.
* * * * *
(b) Table of provisions:
------------------------------------------------------------------------
Code Provisions
------------------------------------------------------------------------
* * * * *
4......................................... Stow ``Separated from''
liquid organic materials.
5......................................... Stow ``Separated from''
powdered metals and their
compounds.
* * * * *
------------------------------------------------------------------------
(c) * * *
(1) Explosive substances and explosive articles must be stowed in
accordance with Column (10A) and Columm (10B) of the Sec. 172.101 Table
of this subchapter.
------------------------------------------------------------------------
Notes Provisions
------------------------------------------------------------------------
5E..................................... Stow ``away from'' lead and its
compounds.
7E..................................... Stowage category ``04'' for
projectiles or cartridges for
guns, cannons or mortars;
Stowage category ``08'' for
other types.
8E..................................... When under deck, special
stowage is required.
14E.................................... On deck, cargo transport unit
must be steel.
15E.................................... On deck, cargo transport unit
must be leakproof.
17E.................................... On deck stowage is recommended.
19E.................................... Substances which contain
ammonium nitrate or other
ammonium salts must be stowed
``away from'' Explosive,
blasting, type C, UN0083.
20E.................................... Stowage category ``03'' for
projectiles or cartridges for
guns, cannons or mortars;
Stowage category ``07'' for
other types; magazines must be
of steel construction that
prevents leakage.
21E.................................... Cargo space ventilation must be
carefully controlled to avoid
excessive condensation.
22E.................................... May not be stowed together with
explosive substances
containing ammonium nitrate or
other ammonium salts.
Segregate from other Class 1
(explosive) materials in the
same manner as is required for
flammable liquids.
23E.................................... Stowage category ``13'' and,
for on deck stowage, non-
metallic lining of closed
cargo transport unit is
required when not in
effectively sealed, sift-proof
packages; Stowage category
``10'' permitted when in
effectively sealed, sift-proof
packages.
26E.................................... For closed cargo transport
unit, a non-metallic lining is
required.
27E.................................... Stow away from alkaline
compounds.
------------------------------------------------------------------------
Sec. 176.128 [Amended]
53. In Sec. 176.128, in paragraph (c), the word ``UN 0600'' would
be revised to read ``UN 0060''.
Sec. 176.136 [Amended]
54. In Sec. 176.136, in paragraph (e), the word ``portable'' would
be removed.
55. In Sec. 176.142, paragraph (a) would be revised to read as
follows:
Sec. 176.142 Hazardous materials of extreme flammability.
(a) Except as allowed by paragraph (b) of this section, certain
hazardous materials of extreme flammability may not be transported in a
vessel carrying Class 1 (explosive) materials. This prohibition applies
to the following liquid hazardous materials:
Carbon disulfide: UN1131, Class 3
Diethylzinc: UN1366, Division 4.2
Dimethylzinc: UN1370, Division 4.2
Magnesium alkyls: UN3053, Division 4.2
Methyl phosphorous dichloride: NA2845, Division 6.1
Nickel carbonyl: UN1259, Division 6.1
Pyrophoric liquid, inorganic, n.o.s.: UN3194, Division 4.2
Pyrophoric liquids, organic, n.o.s.: UN2845, Division 4.2
Pyrophoric organometallic compound, water-reactive, n.o.s.: UN3203,
Division 4.2
* * * * *
56. A new section Sec. 176.720 would be added to subpart M to read
as follows:
Sec. 176.720 Requirements for carriage of INF cargo in international
transportation.
(a) A vessel carrying INF cargo in international transportation
must meet the requirements of the INF Code (incorporated by reference,
see Sec. 171.7 of this subchapter) in addition to all other applicable
requirements of this subchapter.
PART 177--CARRIAGE BY PUBLIC HIGHWAY
57. The authority citation for part 177 would continue to read as
follows:
Authority: 49 U.S.C. 5101-5127; 49 CFR 1.53.
58. In Sec. 177.848, paragraph (g)(3)(vi) would be revised to read
as follows:
Sec. 177.848 Segregation of hazardous materials.
* * * * *
(g) * * *
(3) * * *
(vi) ``6'' means explosive articles in compatibility group G, other
than fireworks and those requiring special handling, may be loaded,
transported and stored with articles of compatibility groups C, D and
E, provided no explosive substances are carried in the same vehicle.
* * * * *
PART 178--SPECIFICATIONS FOR PACKAGINGS
59. The authority citation for part 178 would continue to read as
follows:
Authority: 49 U.S.C. 5101-5127; 49 CFR 1.53.
60. A new section Sec. 178.273 would be added to subpart H to read
as follows:
Sec. 178.273 Approval of Specification IM portable tanks and UN
portable tanks.
(a) Application for approval. (1) An owner or manufacturer of a
portable tank shall apply for approval to a designated approval agency
authorized to approve the portable tank in accordance with the
procedures in subpart E, part 107 of this subchapter.
(2) Each application for approval must contain the following
information:
(i) Three complete copies of all engineering drawings,
calculations, and
[[Page 63421]]
test data necessary to ensure that the design meets the relevant
specification.
(ii) The manufacturer's serial number that will be assigned to each
portable tank.
(iii) A statement as to whether the design type has been examined
by any approval agency previously and judged unacceptable. Affirmative
statements must be documented with the name of the approval agency,
reason for nonacceptance, and the nature of modifications made to the
design type.
(b) Action by approval agency. The approval agency shall perform
the following activities:
(1) Review the application for approval to determine whether it is
complete and conforms with the requirements of paragraph (a) of this
section. If an application is incomplete, it will be returned to the
applicant and the applicant will be informed in what respects the
application is incomplete.
(2) Review all drawings and calculations to ensure that the design
is in compliance with all requirements of the relevant specification.
If the application is approved, one set of the approved drawings,
calculations, and test data shall be returned to the applicant. The
second and third (inspector's copy) sets of approved drawings,
calculations, and test data shall be retained by the approval agency.
Maintain drawings and approval records for as long as the portable tank
remains in service. The drawings and records must be provided to DOT
upon request.
(3) Witness all tests required for the approval of the portable
tank specified in Sec. 178.273 and part 180, subpart G, of this
subchapter.
(4) Ensure, through appropriate inspection that each portable tank
is fabricated in all respects in conformance with the approved
drawings, calculations, and test data.
(5) Determine and ensure that the portable tank is suitable for its
intended use and that it conforms to the requirements of this
subchapter.
(6) For UN portable tanks intended for liquefied compressed gases
and Division 6.1 liquids which meet the inhalation toxicity criteria
(Zone A or B) as defined in Sec. 173.132 of this subchapter, or that
are designated as toxic by inhalation materials in the Sec. 172.101
Table of this subchapter, the approval agency must ensure that:
(i) The portable tank has been constructed in accordance with the
ASME Code, Section VIII, Division 1 (incorporated by reference, see
Sec. 171.7 of this subchapter). ASME Code, Section VIII, Division II or
other design code may be used if approved by the Associate
Administrator (see Sec. 178.274(b)(1));
(ii) All applicable provisions of the design and construction have
been met to the satisfaction of the designated approval agency in
accordance with the rules established in the ASME Code and that the
portable tank meets the requirements of the ASME Code or other design
code if approved by the Associate Administrator (see
Sec. 178.274(b)(1)), and all the applicable requirements specified in
this subchapter;
(iii) The authorized inspector has carried out all the inspections
specified by the rules established in the ASME Code; and
(iv) The portable tank is marked with a U stamp code symbol under
the authority of an authorized independent inspector.
(7) For UN portable tanks the approval certificate must also
include the following:
(i) The results of the applicable framework and rail impact test
specified in part 180, subpart G, of this subchapter; and
(ii) The results of the initial inspection and test in Sec. 180.605
of this subchapter.
(8) Upon successful completion of all requirements of this subpart,
the approval agency shall:
(i) Apply its name, identifying mark or identifying number, and the
date upon which the approval was issued, to the metal identification
marking plate attached to the portable tank. Any approvals for UN
portable tanks authorizing design or construction alternatives
(Alternate Arrangements) approved by the Associate Administrator (see
Sec. 178.274(a)(2)) must be indicated on the plate as specified in
Sec. 178.274(i).
(ii) Issue an approval certificate for each portable tank or, in
the case of a series of identical portable tanks manufactured to a
single design type, for each series of portable tanks. The approval
certificate must include all the information required to be displayed
on the required metal identification plate required by Sec. 178.270-14
for IM portable tanks, Sec. 178.245-6 for specification 51 steel
portable tanks, or Sec. 178.274(i) for UN portable tanks. The approval
certificate must attest that the approval agency designated to approve
the portable tank has approved the portable tank in accordance with the
procedures in subpart E, part 107 of this subchapter and that the
portable tank is suitable for its intended purpose and meets the
requirements of this subchapter. When a series of portable tanks is
manufactured without change in the design type, the certificate may be
valid for the entire series of portable tanks representing a single
design type. For UN portable tanks, the certificate must refer to the
prototype test report, the hazardous materials or group of hazardous
materials allowed to be transported, the materials of construction of
the shell and lining (when applicable) and an approval number. The
approval number must consist of the distinguishing sign or mark of the
country (``USA'' for the United States of America) where the approval
was granted and a registration number.
(iii) Retain a copy of each approval certificate.
(9) The approval agency must remain independent from the
manufacturer. The approval agency and the authorized inspector may be
the same entity.
(c) Manufacturers' responsibilities. The manufacturer is
responsible for compliance with the applicable specifications for the
design and construction of portable tanks. In addition to
responsibility for compliance, manufacturers are responsible for
ensuring that the contracted approval agency and authorized inspector,
if applicable, are qualified, reputable and competent. The manufacturer
of a portable tank must:
(1) Comply with all the applicable requirements of the ASME Code
(incorporated by reference, see Sec. 171.7 of this subchapter) and of
this subpart including, but not limited to, ensuring that the quality
control, design calculations and required tests are performed and that
all aspects of the portable tank meet the applicable requirements.
(2) Obtain and use a designated approval agency, if applicable, and
obtain and use a DOT-designated approval agency to approve the design,
construction and certification of the portable tank.
(3) Provide a statement in the manufacturers' data report attesting
that each portable tank that is manufactured complies with the relevant
specification and all the applicable requirements of this subchapter.
(4) Maintain records of the qualification of portable tanks for at
least 5 years and provide copies to the approval agency and the owner
of the tank. Provide records to the U.S. DOT upon request.
(d) Denial of application for approval. If an approval agency finds
that a portable tank cannot be approved for any reason, it shall so
notify the applicant in writing and shall provide the applicant with
the reasons for which the approval is denied. A copy of the
[[Page 63422]]
notification letter shall be provided to the Associate Administrator.
An applicant aggrieved by a decision of an approval agency may appeal
the decision in writing within 90 days of receipt to the Associate
Administrator.
(e) Modifications to approved portable tanks. (1) Prior to
modification of any approved portable tank which may affect conformance
of an IM or UN portable tank, which may involve a change to the design
type or which may affect its ability to retain the hazardous material
in transportation, the person desiring to make such modification shall
inform the approval agency that issued the initial approval of the
portable tank (or if unavailable another approval agency) of the nature
of the modification and request approval of the modification. The owner
or manufacturer shall supply the approval agency with three sets of all
revised drawings, calculations, and test data relative to the intended
modification.
(2) A statement as to whether the intended modification has been
examined by any approval agency previously judged unacceptable. An
affirmative statement must be documented with the name of the approving
agency, the reason for nonacceptance, and the nature of changes made to
the modification since its original rejection.
(3) The approval agency shall review the request for modification,
and if it is determined that the proposed modification is in full
compliance with the relevant DOT specification, including a UN portable
tank, the request shall be approved and the approval agency shall
perform the following activities:
(i) Return one set of the approved revised drawings, calculations,
and test data to the applicant. The second and third sets of the
approved revised drawings, calculations, and data shall be retained by
the approval agency as required in Sec. 107.404(a)(3) of this
subchapter.
(ii) Ensure through appropriate inspection that all modifications
conform to the revised drawings, calculations, and test data.
(iii) Determine the extent to which retesting of the modified tank
is necessary based on the nature of the proposed modification, and
ensure that all required retests are satisfactorily performed.
(iv) If modification to an approved tank alters any information on
the approval certificate, issue a new approval certificate for the
modified tank and ensure that any necessary changes are made to the
metal identification plate. A copy of each newly issued approval
certificate shall be retained by the approval agency and by the owner
of each portable tank.
(4) If it determined that the proposed modification is not in
compliance with the relevant DOT specification, the request shall be
denied. The procedures of paragraph (d) of this section apply to such
denial.
(f) Termination of Approval Certificate. (1) The Associate
Administrator may terminate an approval issued under this section if he
determines that:
(i) Information upon which the approval was based is fraudulent or
substantially erroneous; or
(ii) Termination of the approval is necessary to adequately protect
against risks to life and property; or
(iii) The approval was not issued by the approval agency in good
faith; or
(iv) That the portable tank does not meet the specification.
(2) Before an approval is withdrawn, the Associate Administrator
gives the interested party(ies):
(i) Written notice of the facts or conduct believed to warrant the
withdrawal;
(ii) Opportunity to submit oral and written evidence; and
(iii) Opportunity to demonstrate or achieve compliance with the
application requirement.
(3) If the Associate Administrator determines that a certificate of
approval must be withdrawn to preclude a significant and imminent
adverse affect on public safety, he shall withdraw the certificate of
approval issued by a designated approval agency. In such circumstances,
the procedures of paragraphs (f)(2) (ii) and (iii) of this section need
not be provided prior to withdrawal of the approval, but shall be
provided as soon as practicable thereafter.
61. Section 178.274 would be added to subpart H to read as follows:
Sec. 178.274 Specifications for UN portable tanks.
(a) General. (1) Each UN portable tank must meet the requirements
of this section. In addition to the requirements of this section,
requirements specific to UN portable tanks used for liquid and solid
hazardous materials, liquefied compressed gases and refrigerated
liquefied gases are provided in Secs. 178.275, 178.276 and 178.277,
respectively. Requirements for approval, maintenance, inspection,
testing and use are provided in Sec. 178.273 and part 180, subpart G,
of this subchapter. Any portable tank which meets the definition of a
``container'' within the terms of the International Convention for Safe
Containers (CSC) must meet the requirements of the CSC as amended and
49 CFR parts 450 through 453 and must have a CSC safety approval plate.
(2) In recognition of scientific and technological advances, the
technical requirements applicable to UN portable tanks may be varied if
approved by the Associate Administrator and the portable tank is shown
to provide a level of safety equal to or exceeding the requirements of
this subchapter with respect to the compatibility of the transported
hazardous materials and the ability of the portable tank to withstand
impact, loading and fire conditions. Portable tanks approved to
alternative technical requirements must be marked ``Alternative
Arrangement'' as specified in paragraph (i) of this section.
(3) Definitions. The following definitions apply for the purposes
of design and construction of UN portable tanks under this subpart:
Alternate Arrangement portable tank means a UN portable tank that
has been approved to alternative technical requirements or testing
methods other than those specified for UN portable tanks in part 178 or
part 180 of this subchapter.
Approval agency means the designated approval agency authorized to
approve the portable tank in accordance with the procedures in subpart
E, part 107 of this subchapter.
Design pressure is defined differently depending on the hazardous
materials intended to be transported in the portable tank. See
Secs. 178.275, 178.276 and 178.277 as applicable.
Design type means a portable tank or series of portable tanks made
of materials of the same material specifications and thicknesses,
manufactured by a single manufacturer, using the same fabrication
techniques (for example, welding procedures) and made with equivalent
structural equipment, closures, and service equipment.
Fine grain steel means steel which has a ferritic grain size of 6
or finer when determined in accordance with ASTM E 112 (incorporated by
reference, see Sec. 171.7 of this subchapter).
Jacket means the outer insulation cover or cladding which may be
part of the insulation system.
Leakage test means a test using gas to subject the shell and its
service equipment to an effective internal pressure of not less than
25% of the MAWP. For portable tanks used for refrigerated liquefied
gases the leakage test must be conducted at an effective internal
pressure of not less than 90% of the MAWP.
[[Page 63423]]
Maximum allowable working pressure (MAWP) is defined differently
depending on the hazardous materials intended to be transported in the
portable tank. See Secs. 178.275, 178.276 and 178.277, as applicable.
Maximum permissible gross mass (MPGM) means the sum of the tare
mass of the portable tank and the heaviest hazardous material
authorized for transportation.
Mild steel means a steel with a guaranteed minimum tensile strength
of 360 N/mm2 to 440 N/mm2 and a guaranteed minimum elongation at
fracture as specified in paragraph Sec. 178.274(c)(11).
Offshore portable tank means a portable tank specially designed for
repeated use in the transportation of hazardous materials to, from and
between offshore facilities. An offshore portable tank is designed and
constructed in accordance with the Guidelines for the Approval of
Containers Handled in Open Seas specified in the IMDG Code
(incorporated by reference, see Sec. 171.7 of this subchapter).
Reference steel means a steel with a tensile strength of 370 N/
mm2 and an elongation at fracture of 27%.
Service equipment means measuring instruments and filling,
discharge, venting, safety, heating, cooling and insulating devices.
Shell means the part of the portable tank which retains the
hazardous materials intended for transportation, including openings and
their closures, but does not include service equipment or external
structural equipment.
Structural equipment means the reinforcing, fastening, protective
and stabilizing members external to the shell.
Test pressure means the maximum gauge pressure at the top of the
shell during the hydraulic pressure test equal to not less than 1.5
times the design pressure for liquids and 1.3 for liquefied compressed
gases. The minimum test pressure for portable tanks intended for
specific hazardous materials is specified in the applicable portable
tank T code assigned to a particular hazardous material in the
Sec. 172.101 Table of this subchapter.
(b) General design and construction requirements. (1) The design
temperature range for the shell must be -40 deg.C to 50 deg.C (-40
deg.F to 122 deg.F) for hazardous materials transported under normal
conditions of transportation, except for portable tanks used for
refrigerated liquefied gases where the minimum design temperature must
not be higher than the lowest (coldest) temperature (for example,
service temperature) of the contents during filling, discharge or
transportation. For hazardous materials handled under elevated
temperature conditions, the design temperature must not be less than
the maximum temperature of the hazardous material during filling,
discharge or transportation. More severe design temperatures must be
considered for portable tanks subjected to severe climatic conditions
(for example, portable tanks transported in arctic regions). Shells
must be designed and constructed in accordance with the requirements of
the ASME Code, Section VIII, Division 1 (incorporated by reference, see
Sec. 171.7 of this subchapter), except as limited or modified in this
subchapter. For portable tanks used for liquid or solid hazardous
materials, a design code other than the ASME Code may be used if
approved by the Associate Administrator. Portable tanks used for
liquified compressed gases require an ASME certification and U stamp.
Shells must be made of metallic materials suitable for forming. Non-
metallic materials may be used for the attachments and supports between
the shell and jacket, provided their material properties at the minimum
and maximum design temperatures are proven to be sufficient. For welded
shells, only a material whose weldability has been fully demonstrated
may be used. Welds must be of high quality and conform to a level of
integrity at least equivalent to the welding requirements specified in
the ASME Code, Section VIII for the welding of pressure vessels. When
the manufacturing process or the materials make it necessary, the
shells must be suitably heat-treated to guarantee adequate toughness in
the weld and in the heat affected zones. In choosing the material, the
design temperature range must be taken into account with respect to
risk of brittle fracture, stress corrosion cracking, resistance to
impact, and suitability for the hazardous materials intended for
transportation in the portable tank. When fine grain steel is used, the
guaranteed value of the yield strength must be not more than 460 N/
mm2 and the guaranteed value of the upper limit of the tensile
strength must be not more than 725 N/mm2 according to the material
specification. Aluminum may not be used as a construction material for
the shell. Portable tank materials must be suitable for the external
environment where they will be transported taking into account the
determined design temperature range. Portable tanks must be designed to
withstand, without loss of contents, at least the internal pressure due
to the contents and the static, dynamic and thermal loads during normal
conditions of handling and transportation. The design must take into
account the effects of fatigue, caused by repeated application of these
loads through the expected life of the portable tank.
(2) Portable tank shells, fittings, and pipework must be
constructed from materials that are:
(i) Compatible with the hazardous materials intended to be
transported; or
(ii) Properly passivated or neutralized by chemical reaction, if
applicable; or
(iii) For portable tanks used for liquid and solid materials, lined
with corrosion-resistant material directly bonded to the shell or
attached by equivalent means.
(3) Gaskets and seals must be made of materials that are compatible
with the hazardous materials intended to be transported.
(4) When shells are lined, the lining must be compatible with the
hazardous materials intended to be transported, homogeneous, non-
porous, free from perforations, sufficiently elastic and compatible
with the thermal expansion characteristics of the shell. The lining of
every shell, shell fittings and piping must be continuous and must
extend around the face of any flange. Where external fittings are
welded to the tank, the lining must be continuous through the fitting
and around the face of external flanges. Joints and seams in the lining
must be made by fusing the material together or by other equally
effective means.
(5) Contact between dissimilar metals which could result in damage
by galvanic action must be prevented by appropriate measures.
(6) The construction materials of the portable tank, including any
devices, gaskets, linings and accessories, must not adversely affect or
react with the hazardous materials intended to be transported in the
portable tank.
(7) Portable tanks must be designed and constructed with supports
that provide a secure base during transportation and with suitable
lifting and tie-down attachments.
(c) Design criteria. (1) Portable tanks and their fastenings must,
under the maximum permissible load, be capable of absorbing the
following separately applied static forces (for calculation purposes,
acceleration due to gravity (g) = 9.81m/s2):
(i) In the direction of travel: 2g (twice the MPGM multiplied by
the acceleration due to gravity);
(ii) Horizontally at right angles to the direction of travel: 1g
(the MPGM
[[Page 63424]]
multiplied by the acceleration due to gravity);
(iii) Vertically upwards: 1g (the MPGM multiplied by the
acceleration due to gravity); and
(iv) Vertically downwards: 2g (twice the MPGM multiplied by the
acceleration due to gravity).
(2) Under each of the forces specified in paragraph (c)(1) of this
section, the safety factor must be as follows:
(i) For metals having a clearly defined yield point, a design
margin of 1.5 in relation to the guaranteed yield strength; or
(ii) For metals with no clearly defined yield point, a design
margin of 1.5 in relation to the guaranteed 0.2% proof strength and,
for austenitic steels, the 1% proof strength.
(3) The values of yield strength or proof strength must be the
values according to recognized material standards. When austenitic
steels are used, the specified minimum values of yield strength or
proof strength according to the material standards may be increased by
up to 15% when these greater values are attested in the material
inspection certificate.
(4) Portable tanks must be capable of being electrically grounded
to prevent dangerous electrostatic discharge when they are used for
Class 2 flammable gases or Class 3 flammable liquids, including
elevated temperature materials transported at or above their flash
point.
(5) For shells of portable tanks used for liquefied compressed
gases, the shell must consist of a circular cross section. Shells must
be of a design capable of being stress-analysed mathematically or
experimentally by resistance strain gauges as specified in UG-101 of
the ASME Code (incorporated by reference, see Sec. 171.7 of this
subchapter), or other methods approved by the Associate Administrator.
(6) Shells must be designed and constructed to withstand a
hydraulic test pressure of not less than 1.5 times the design pressure
for portable tanks used for liquids and 1.3 times the design pressure
for portable tanks used for liquefied compressed gases. Specific
requirements are provided for each hazardous material in the applicable
T Code or portable tank special provision specified in the Sec. 172.101
Table of this subchapter. The minimum shell thickness requirements must
also be taken into account.
(7) For metals exhibiting a clearly defined yield point or
characterized by a guaranteed proof strength (0.2% proof strength,
generally, or 1% proof strength for austenitic steels), the primary
membrane stress (sigma) in the shell must not exceed 0.75 Re or 0.50
Rm, whichever is lower, at the test pressure, where:
Re = yield strength in N/mm2, or 0.2% proof strength or, for
austenitic steels, 1% proof strength;
Rm = minimum tensile strength in N/mm2.
(8) The values of Re and Rm to be used must be the specified
minimum values according to recognized material standards. When
austenitic steels are used, the specified minimum values for Re and Rm
according to the material standards may be increased by up to 15% when
greater values are attested in the material inspection certificate.
(9) Steels which have a Re/Rm ratio of more than 0.85 are not
allowed for the construction of welded shells. The values of Re and Rm
to be used in determining this ratio must be the values specified in
the material inspection certificate.
(10) Steels used in the construction of shells must have an
elongation at fracture, in percentage, of not less than 10,000/Rm with
an absolute minimum of 16% for fine grain steels and 20% for other
steels.
(11) For the purpose of determining actual values for materials for
sheet metal, the axis of the tensile test specimen must be at right
angles (transversely) to the direction of rolling. The permanent
elongation at fracture must be measured on test specimens of
rectangular cross sections in accordance with ISO 6892 (see Sec. 171.7
of this subchapter), using a 50 mm gauge length.
(d) Minimum shell thickness. (1) The minimum shell thickness must
be the greatest thickness of the following:
(i) the minimum thickness determined in accordance with the
requirements of paragraphs (d)(2) through (d)(10) of this section;
(ii) the minimum thickness determined in accordance with the ASME
Code (incorporated by reference, see Sec. 171.7 of this subchapter) or
other approved pressure vessel code; or
(iii) the minimum thickness specified in the applicable T code or
portable tank special provision indicated for each hazardous material
in the Sec. 172.101 Table of this subchapter.
(2) Shells (cylindrical portions, heads and manhole covers) not
more than 1.80 m in diameter may not be less than 5 mm thick in the
reference steel or of equivalent thickness in the metal to be used.
Shells more than 1.80 m in diameter may not be less than 6 mm thick in
the reference steel or of equivalent thickness in the metal to be used.
For portable tanks used only for the transportation of powdered or
granular solid hazardous materials of Packing Group II or III, the
minimum thickness requirement may be reduced to 5 mm in the reference
steel or of equivalent thickness in the metal to be used regardless of
the shell diameter. For vacuum-insulated tanks, the aggregate thickness
of the jacket and the shell must correspond to the minimum thickness
prescribed in this paragraph, with the thickness of the shell itself
not less than the minimum thickness prescribed in paragraph (d)(3) of
this section.
(3) When additional protection against shell damage is provided in
the case of portable tanks used for liquid and solid hazardous
materials requiring test pressures less than 2.65 bar (265.0 kPa),
subject to certain limitations specified in the UN Recommendations
(incorporated by reference, see Sec. 171.7 of this subchapter), the
Associate Administrator may approve a reduced minimum shell thickness.
(4) The cylindrical portions, heads and manhole covers of all
shells must not be less than 3 mm (0.1 inch) thick regardless of the
material of construction, except for portable tanks used for liquefied
compressed gases where the cylindrical portions, ends (heads) and
manhole covers of all shells must not be less than 4 mm (0.2 inch)
thick regardless of the material of construction.
(5) When steel that has characteristics other than that of
reference steel is used, the equivalent thickness of the shell and
heads must be determined according to the following formula:
Where:
[GRAPHIC] [TIFF OMITTED] TP23OC00.006
e1 = required equivalent thickness (in mm) of the
metal to be used;
e0 = minimum thickness (in mm) of the reference
steel specified in the applicable T code or portable tank special
provision indicated for each material in the Sec. 172.101 Table of
this subchapter;
d1 = 1.8m, unless the formula is used to determine
the equivalent minimum thickness for a portable tank shell that is
required to have a minimum thickness of 8mm or 10mm according to the
applicable T code indicated in the Sec. 172.101 Table of this
subchapter. When reference steel thicknesses of 8mm or 10mm are
specified, d1 is equal to the actual diameter of the
shell but not less than 1.8m;
Rm1 = guaranteed minimum tensile strength (in N/
mm2) of the metal to be used;
A1 = guaranteed minimum elongation at fracture (in
%) of the metal to be used
[[Page 63425]]
according to recognized material standards.
(6) The wall and all parts of the shell may not have a thickness
less than that prescribed in paragraphs (d)(2), (d)(3) and (d)(4) of
this section. This thickness must be exclusive of any corrosion
allowance.
(7) There must be no sudden change of plate thickness at the
attachment of the heads to the cylindrical portion of the shell.
(e) Service equipment. (1) Service equipment must be arranged so
that it is protected against the risk of mechanical damage by external
forces during handling and transportation. When the connections between
the frame and the shell allow relative movement between the sub-
assemblies, the equipment must be fastened to allow such movement
without risk of damage to working parts. The external discharge
fittings (pipe sockets, shut-off devices) and the internal stop-valve
and its seating must be protected against mechanical damage by external
forces (for example, by using shear sections). The filling and
discharge devices (including flanges or threaded plugs) and any
protective caps must be capable of being secured against unintended
opening.
(2) Each connection to a portable tank must be clearly marked to
indicate its function.
(3) Each stop-valve or other means of closure must be designed and
constructed to a rated pressure not less than the MAWP of the shell
taking into account the temperatures expected during transport. All
stop-valves with screwed spindles must close by a clockwise motion of
the handwheel. For other stop-valves the position (open and closed) and
direction of closure must be clearly indicated. All stop-valves must be
designed to prevent unintentional opening.
(4) Piping must be designed, constructed and installed to avoid the
risk of damage due to thermal expansion and contraction, mechanical
shock and vibration. All piping must be of a suitable metallic
material. Welded pipe joints must be used wherever possible.
(5) Joints in copper tubing must be brazed or have an equally
strong metal union. The melting point of brazing materials must be no
lower than 525 deg.C (977 deg.F). The joints must not decrease the
strength of the tubing, such as may happen when cutting threads.
(6) The burst pressure of all piping and pipe fittings must be
greater than the highest of four times the MAWP of the shell or four
times the pressure to which it may be subjected in service by the
action of a pump or other device (except pressure relief devices).
(7) External fittings must be grouped together. Filling and
discharge connections may be installed below the normal liquid level of
the tank if the tank design conforms to the following requirements:
(i) The portable tank must be permanently mounted in a full
framework for containerized transport. For each portable tank design, a
prototype portable tank, must fulfill the requirements of parts 450
through 453 of this title for compliance with the requirements of Annex
II of the International Convention for Safe Containers.
(ii) Each filling and discharge connection must be equipped with an
internal self-closing stop-valve capable of closing within 30 seconds
of actuation. Each internal self-closing stop-valve must be protected
by a shear section or sacrificial device located outboard of the valve.
The shear section or sacrificial device must break at no more than 70
percent of the load that would cause failure of the internal self-
closing stop-valve.
(iii) Each internal self-closing stop-valve must be provided with
remote means of automatic closure, both thermal and mechanical. The
thermal means of automatic closure must actuate at a temperature of not
over 121 deg.C (250 deg.F).
(8) Ductile metals must be used in the construction of valves and
accessories.
(f) Pressure relief devices.--(1) Marking of pressure relief
devices. Every pressure relief device must be clearly and permanently
marked with the following:
(i) the pressure (in bar or kPa) or temperature for fusible
elements (in deg.C) at which it is set to discharge;
(ii) the allowable tolerance at the discharge pressure for
reclosing devices;
(iii) the reference temperature corresponding to the rated pressure
for frangible discs;
(iv) the allowable temperature tolerance for fusible elements;
(v) the rated flow capacity of the device in standard cubic meters
of air per second (m3/s) determined according to ISO 4126-1
(incorporated by reference, see Sec. 171.7 of this subchapter); and
(vi) when practicable, the device must show the manufacturer's name
and product number.
(2) Connections to pressure relief devices. Connections to pressure
relief devices must be of sufficient size to enable the required
discharge to pass unrestricted to the safety device. No stop-valve may
be installed between the shell and the pressure relief devices except
where duplicate devices are provided for maintenance or other reasons
and the stop-valves serving the devices actually in use are locked open
or the stop-valves are interlocked so that at least one of the
duplicate devices is always in use. There must be no obstruction in an
opening leading to a vent or pressure relief device which might
restrict or cut-off the flow from the shell to that device. Vents or
pipes from the pressure relief device outlets, when used, must deliver
the relieved vapor or liquid to the atmosphere in conditions of minimum
back-pressure on the relieving devices.
(3) Location of pressure relief devices. (i) Each pressure relief
device inlet must be situated on top of the shell in a position as near
the longitudinal and transverse center of the shell as reasonably
practicable. All pressure relief device inlets must, under maximum
filling conditions, be situated in the vapor space of the shell and the
devices must be so arranged as to ensure that escaping vapor is
discharged unrestrictedly. For flammable hazardous materials, the
escaping vapor must be directed away from the shell in such a manner
that it cannot impinge upon the shell. For refrigerated liquefied
gases, the escaping vapor must be directed away from the tank and in
such a manner that it cannot impinge upon the tank. Protective devices
which deflect the flow of vapor are permissible provided the required
relief-device capacity is not reduced.
(ii) Arrangements must be made to prevent unauthorized persons from
access to the pressure relief devices and to protect the devices from
damage caused by the portable tank overturning.
(g) Gauging devices. Unless a portable tank is intended to be
filled by weight, it must be equipped with one or more gauging devices.
Glass level-gauges and gauges made of other fragile material, which are
in direct communication with the contents of the tank are prohibited. A
connection for a vacuum gauge must be provided in the jacket of a
vacuum-insulated portable tank.
(h) Portable tank supports, frameworks, lifting and tie-down
attachments. (1) Portable tanks must be designed and constructed with a
support structure to provide a secure base during transport. The forces
and safety factors specified in paragraphs (c)(1) and (c)(2) of this
section, respectively, must be taken into account in this aspect of the
design. Skids, frameworks, cradles or other similar structures are
acceptable.
(2) The combined stresses caused by portable tank mountings (for
example,
[[Page 63426]]
cradles, framework, etc.) and portable tank lifting and tie-down
attachments must not cause excessive stress in any portion of the
shell. Permanent lifting and tie-down attachments must be fitted to all
portable tanks. Preferably they should be fitted to the portable tank
supports but may be secured to reinforcing plates located on the shell
at the points of support. Each portable tank must be designed so that
the center of gravity of the filled tank is approximately centered
within the points of attachment for lifting devices.
(3) In the design of supports and frameworks, the effects of
environmental corrosion must be taken into account.
(4) Forklift pockets must be capable of being closed off. The means
of closing forklift pockets must be a permanent part of the framework
or permanently attached to the framework. Single compartment portable
tanks with a length less than 3.65 m need not have forklift pockets
that are capable of being closed off provided that:
(i) The shell, including all the fittings, are well protected from
being hit by the forklift blades; and
(ii) The distance between forklift pockets (measured from the
center of each pocket) is at least half of the maximum length of the
portable tank.
(5) During transport, portable tanks must be adequately protected
against damage to the shell, and service equipment resulting from
lateral and longitudinal impact and overturning on the shell and
service equipment must be constructed to withstand impact or
overturning. External fittings must be protected so as to preclude the
release of the shell contents upon impact or overturning of the
portable tank on its fittings. Examples of protection include:
(i) Protection against lateral impact which may consist of
longitudinal bars protecting the shell on both sides at the level of
the median line;
(ii) Protection of the portable tank against overturning which may
consist of reinforcement rings or bars fixed across the frame;
(iii) Protection against rear impact which may consist of a bumper
or frame;
(iv) Protection of the shell against damage from impact or
overturning by use of an ISO frame in accordance with ISO 1496-3
(incorporated by reference, see Sec. 171.7 of this subchapter); and
(v) Protection of the portable tank from impact or overturning by a
vacuum insulation jacket.
(i) Marking. (1) Every portable tank must be fitted with a
corrosion resistant metal plate permanently attached to the portable
tank in a conspicuous place and readily accessible for inspection. When
the plate cannot be permanently attached to the shell, the shell must
be marked with at least the information required by the ASME Code
(incorporated by reference, see Sec. 171.7 of this subchapter). At a
minimum, the following information must be marked on the plate by
stamping or by any other similar method:
Country of manufacture
UN
Approval Country
Approval Number
Alternative Arrangements ``AA'' (see Sec. 178.274(a)(2))
Manufacturer's name or mark
Manufacturer's serial number
Approval Agency (Authorized body for the design approval)
Owner's registration number
Year of manufacture
Pressure vessel code to which the shell is designed
Test pressure __________ bar gauge.
MAWP __________ bar gauge.
External design pressure (not required for portable tanks used
for refrigerated liquefied gases) __________ bar/gauge.
Design temperature range __________ deg.C to __________ deg.C.
(For portable tanks used for refrigerated liquefied gases, the
minimum design temperature must be marked.)
Water capacity at 20 deg.C/ __________ liters.
Water capacity of each compartment at 20 deg.C __________
liters.
Initial pressure test date and witness identification.
MAWP for heating/cooling system __________ bar gauge.
Shell material(s) and material standard reference(s).
Equivalent thickness in reference steel __________ mm.
Lining material (when applicable).
Date and type of most recent periodic test(s).
Month __________ Year __________ Test pressure __________ bar/
gauge.
Stamp of approval agency that performed or witnessed the most
recent test.
For portable tanks used for refrigerated liquefied gases:
Either ``thermally insulated'' or ``vacuum insulated''
__________.
Effectiveness of the insulation system (heat influx) __________
Watts (W).
Reference holding time __________ days or hours and initial
pressure __________ bar/kPa gauge and degree of filling __________
in kg for each refrigerated liquefied gas permitted for
transportation.
(2) The following information must be marked either on the portable
tank itself or on a metal plate firmly secured to the portable tank:
Name of the operator.
Name of hazardous materials being transported and maximum mean
bulk temperature (except for refrigerated liquefied gases, the name
and temperature are only required when the maximum mean bulk
temperature is higher than 50 deg.C).
Maximum permissible gross mass (MPGM) __________ kg.
Unladen (tare) mass __________ kg.
Note to Paragraph (i)(2): For the identification of the
hazardous materials being transported refer to part 172 of this
subchapter.
(3) If a portable tank is designed and approved for open seas
operations, such as offshore oil exploration, in accordance with the
IMDG Code, the words ``OFFSHORE PORTABLE TANK'' must be marked on the
identification plate.
62. Section 178.275 would be added to subpart H to read as follows:
Sec. 178.275 Specification for UN Portable Tanks intended for the
transportation of liquid and solid hazardous materials.
(a) In addition to the requirements of Sec. 178.274, the following
definitions and requirements apply to UN portable tanks intended for
the transportation of liquid and solid hazardous materials:
(1) Design pressure means the pressure to be used in calculations
required by the recognized pressure vessel code. The design pressure
must not be less than the highest of the following pressures:
(i) The maximum effective gauge pressure allowed in the shell
during filling or discharge; or
(ii) The sum of:
(A) The absolute vapor pressure (in bar) of the hazardous material
at 65 deg.C, minus 1 bar (149 deg.F, minus 100 kPa);
(B) The partial pressure (in bar) of air or other gases in the
ullage space, resulting from their compression during filling without
pressure relief by a maximum ullage temperature of 65 deg.C (149
deg.F) and a liquid expansion due to an increase in mean bulk
temperature of 35 deg.C (95 deg.F); and
(C) A head pressure determined on the basis of the forces specified
in Sec. 178.274(c), but not less than 0.35 bar (35 kPa).
(2) Maximum allowable working pressure (MAWP) means a pressure that
must not be less than the highest of the following pressures measured
at the top of the shell while in operating position:
(i) The maximum effective gauge pressure allowed in the shell
during filling or discharge; or
(ii) The maximum effective gauge pressure to which the shell is
designed which must be not less than the design pressure.
(b) Service equipment. (1) In addition to the requirements
specified in Sec. 178.274, for service equipment, all openings in the
shell, intended for filling or discharging the portable tank must be
fitted with a manually operated stop-valve located as close to the
shell
[[Page 63427]]
as reasonably practicable. Other openings, except for openings leading
to venting or pressure relief devices, must be equipped with either a
stop-valve or another suitable means of closure located as close to the
shell as reasonably practicable.
(2) All portable tanks must be fitted with a manhole or other
inspection openings of a suitable size to allow for internal inspection
and adequate access for maintenance and repair of the interior.
Compartmented portable tanks must have a manhole or other inspection
openings for each compartment.
(3) For insulated portable tanks, top fittings must be surrounded
by a spill collection reservoir with suitable drains.
(4) Piping must be designed, constructed and installed to avoid the
risk of damage due to thermal expansion and contraction, mechanical
shock and vibration. All piping must be of a suitable metallic
material. Welded pipe joints must be used wherever possible.
(c) Bottom openings. (1) Certain hazardous materials may not be
transported in portable tanks with bottom openings. When the applicable
T code or portable tank special provision, as referenced for materials
in the Sec. 172.101 Table of this subchapter, specifies that bottom
openings are prohibited, there must be no openings below the liquid
level of the shell when it is filled to its maximum permissible filling
limit. When an existing opening is closed, it must be accomplished by
internally and externally welding one plate to the shell.
(2) Bottom discharge outlets for portable tanks carrying certain
solid, crystallizable or highly viscous hazardous materials must be
equipped with at least two serially fitted and mutually independent
shut-off devices. Use of only two shut-off devices is only authorized
when this paragraph is referenced in the applicable T Code indicated
for each hazardous material in the Sec. 172.101 Table of this
subchapter. The design of the equipment must be to the satisfaction of
the approval agency and must include:
(i) An external stop-valve fitted as close to the shell as
reasonably practicable; and
(ii) A liquid tight closure at the end of the discharge pipe, which
may be a bolted blank flange or a screw cap.
(3) Except as provided in paragraph (c)(2) of this section, every
bottom discharge outlet must be equipped with three serially fitted and
mutually independent shut-off devices. The design of the equipment must
be to the satisfaction of the approval agency and must include:
(i) A self-closing internal stop-valve, which is a stop-valve
within the shell or within a welded flange or its companion flange,
such that:
(A) The control devices for the operation of the valve are designed
to prevent any unintended opening through impact or other inadvertent
act;
(B) The valve is operable from above or below;
(C) If possible, the setting of the valve (open or closed) must be
capable of being verified from the ground;
(D) Except for portable tanks having a capacity less than 1,000
liters (264.2 gallons), it must be possible to close the valve from an
accessible position of the portable tank that is remote from the valve
itself; and
(E) The valve must continue to be effective in the event of damage
to the external device for controlling the operation of the valve;
(ii) An external stop-valve fitted as close to the shell as
reasonably practicable; and
(iii) A liquid tight closure at the end of the discharge pipe,
which may be a bolted blank flange or a screw cap.
(4) For a lined shell, the internal stop-valve required by
paragraph (c)(3)(i) of this section may be replaced by an additional
external stop-valve.
(d) Pressure relief devices. All portable tanks must be fitted with
at least one pressure relief device. All relief devices must be
designed, constructed and marked in accordance with the requirements of
this subchapter.
(e) Vacuum-relief devices. (1) A shell which is to be equipped with
a vacuum-relief device must be designed to withstand, without permanent
deformation, an external pressure of not less than 0.21 bar (21.0 kPa)
above the internal pressure. The vacuum-relief device must be set to
relieve at a vacuum setting not greater than minus (-) 0.21 bar (-21.0
kPa) unless the shell is designed for a higher external over pressure,
in which case the vacuum-relief pressure of the device to be fitted
must not be greater than the tank design vacuum pressure. A shell that
is not fitted with a vacuum-relief device must be designed to
withstand, without permanent deformation, an external pressure of not
less than 0.4 bar (40.0 kPa) above the internal pressure.
(2) Vacuum-relief devices used on portable tanks intended for the
transportation of hazardous materials meeting the criteria of Class 3,
including elevated temperature hazardous materials transported at or
above their flash point, must prevent the immediate passage of flame
into the shell or the portable tank must have a shell capable of
withstanding, without leakage, an internal explosion resulting from the
passage of flame into the shell.
(f) Pressure relief devices. (1) Each portable tank with a capacity
not less than 1,900 liters (501.9 gallons) and every independent
compartment of a portable tank with a similar capacity, must be
provided with one or more pressure relief devices of the reclosing
type. Such portable tanks may, in addition, have a frangible disc or
fusible element in parallel with the reclosing devices, except when the
applicable T code assigned to a hazardous material requires that the
frangible disc precede the pressure relief device, according to
paragraph (f)(3) of this section, or when no bottom openings are
allowed. The pressure relief devices must have sufficient capacity to
prevent rupture of the shell due to over pressurization or vacuum
resulting from filling, discharging, from heating of the contents or
fire.
(2) Pressure relief devices must be designed to prevent the entry
of foreign matter, the leakage of liquid and the development of any
dangerous excess pressure.
(3) When required for certain hazardous materials by the applicable
T code or portable tank special provision specified for a hazardous
material in the Sec. 172.101 Table of this subchapter, portable tanks
must have a pressure relief device consistent with the requirements of
this subchapter. Except for a portable tank in dedicated service that
is fitted with an approved relief device constructed of materials
compatible with the hazardous material, the relief device system must
include a frangible disc preceding a reclosing pressure relief device.
A pressure gauge or suitable tell-tale indicator for the detection of
disc rupture, pin-holing or leakage must provide the space between the
frangible disc and the pressure relief device. The frangible disc must
rupture at a nominal pressure 10% above the start to discharge pressure
of the relief device.
(4) Every portable tank with a capacity less than 1,900 liters
(501.9 gallons) must be fitted with a pressure relief device, which may
be a frangible disc when this disc is set to rupture at a nominal
pressure equal to the test pressure at any temperature within the
design temperature range.
(5) When the shell is fitted for pressure discharge, a suitable
pressure relief device must provide the inlet line to the portable tank
set to operate at a pressure not higher than the MAWP of the shell, and
a stop-valve must be fitted as close to the shell to minimize the
potential for damage.
[[Page 63428]]
(6) Setting of pressure relief devices. (i) Pressure relief devices
must operate only in conditions of excessive rise in temperature, since
the shell must not be subject to undue fluctuations of pressure during
normal conditions of transportation.
(ii) The required pressure relief device must be set to start-to-
discharge at a nominal pressure of five-sixths of the test pressure for
shells having a test pressure of not more than 4.5 bar (450 kPa) and
110% of two-thirds of the test pressure for shells having a test
pressure of more than 4.5 bar (450 kPa). A self-closing relief device
must close at a pressure not more than 10% below the pressure at which
the discharge starts. The device must remain closed at all lower
pressures. This requirement does not prevent the use of vacuum-relief
or combination pressure relief and vacuum-relief devices.
(g) Fusible elements. Fusible elements must operate at a
temperature between 110 deg.C (230 deg.F) and 149 deg.C (300.2
deg.F) provided that the pressure in the shell at the fusing
temperature will not exceed the test pressure. They must be placed at
the top of the shell with their inlets in the vapor space and in no
case may they be shielded from external heat. Fusible elements must not
be utilized on portable tanks with a test pressure which exceeds 2.65
bar (265.0 kPa). Fusible elements used on portable tanks intended for
the transport of elevated temperature hazardous materials must be
designed to operate at a temperature higher than the maximum
temperature that will be experienced during transport and must be to
the satisfaction of the approval agency.
(h) Capacity of pressure relief devices. (1) The reclosing pressure
relief device required by paragraph (f)(1) must have a minimum cross
sectional flow area equivalent to an orifice of 31.75 mm (1.3 inches)
diameter. Vacuum-relief devices, when used, must have a cross sectional
flow area not less than 284 mm2 (11.2 inches2).
(2) Under conditions of complete fire engulfment of the portable
tank, the combined delivery capacity of the relief devices must be
sufficient to limit the pressure in the shell to 20% above the start-
to-discharge pressure specified in paragraph(f)(6) of this section.
Emergency pressure relief devices may be used to achieve the full
relief capacity prescribed. The total required capacity of the relief
devices may be determined using the formula in paragraph (h)(2)(i) of
this section or the table in paragraph (h)(2)(iii) of this section.
(i)(A) To determine the total required capacity of the relief
devices, which must be regarded as being the sum of the individual
capacities of all the contributing devices, the following formula must
be used:
[GRAPHIC] [TIFF OMITTED] TP23OC00.007
Where:
Q = minimum required rate of discharge in cubic meters of air
per second (m3/s) at standard conditions: 1 bar and 0
deg.C (273 K);
F = for uninsulated shells: 1; for insulated shells: U(649 - t)/
13.6 but in no case is less than 0.25 where: U = thermal conductance
of the insulation in
kWm-2K-1, at 38 deg.C;
and t = actual temperature of the hazardous material during filling
(in deg.C) or when this temperature is unknown, let t = 15 deg.C.
The value of F given above for insulated shells may only be used if
the insulation is in conformance with paragraph (h)(2)(iv) of this
section;
A = total external surface area of shell in square meters;
Z = the gas compressibility factor in the accumulating condition
(when this factor is unknown, let Z equal 1.0);
T = absolute temperature in Kelvin ( deg.C + 273) above the
pressure relief devices in the accumulating condition;
L = the latent heat of vaporization of the liquid, in kJ/kg, in
the accumulating condition;
M = molecular weight of the hazardous material.
(B) The constant C, as shown in the formula in paragraph
(h)(2)(i)(A) of this section, is derived from one of the following
formula as a function of the ratio k of specific heats:
[GRAPHIC] [TIFF OMITTED] TP23OC00.008
Where:
cp is the specific heat at constant pressure; and
cv is the specific heat at constant volume.
(C) When k>1:
[GRAPHIC] [TIFF OMITTED] TP23OC00.009
(D) When k = 1 or k is unknown, a value of 0.607 may be used for
the constant C. C may also be taken from the following table:
C Constant Value Table
------------------------------------------------------------------------
k C k C k C
------------------------------------------------------------------------
1.00 0.607 1.26 0.660 1.52 0.704
1.02 0.611 1.28 0.664 1.54 0.707
1.04 0.615 1.30 0.667 1.56 0.710
1.06 0.620 1.32 0.671 1.58 0.713
1.08 0.624 1.34 0.674 1.60 0.716
1.10 0.628 1.36 0.678 1.62 0.719
1.12 0.633 1.38 0.681 1.64 0.722
1.14 0.637 1.40 0.685 1.66 0.725
1.16 0.641 1.42 0.688 1.68 0.728
1.18 0.645 1.44 0.691 1.70 0.731
1.20 0.649 1.46 0.695 2.00 0.770
1.22 0.652 1.48 0.698 2.20 0.793
1.24 0.656 1.50 0.701 .......
------------------------------------------------------------------------
(ii) As an alternative to the formula in paragraph (h)(2)(i) of
this section, relief devices for shells used for transporting liquids
may be sized in accordance with the table in paragraph (h)(2)(iii) of
this section. The table in paragraph (h)(2)(iii) of this section
assumes an insulation value of F = 1 and must be adjusted accordingly
when the shell is insulated. Other values used in determining the table
in paragraph (h)(2)(iii) of this section are: L = 334.94 kJ/kg; M =
86.7; T = 394 K; Z = 1; and C = 0.607.
(iii) Minimum emergency vent capacity, Q, in cubic meters per air
per second at 1 bar and 0 deg.C (273 K), as shown in the following
table:
[[Page 63429]]
Minimum Emergency Vent Capacity
[Q Values]
------------------------------------------------------------------------
Q Q
(Cubic A (Cubic
meters Exposed meters
A Exposed area (square meters) of air area of air
per (square per
second) meters) second)
------------------------------------------------------------------------
2 0.230 37.5 2.539
3 0.320 40 2.677
4 0.405 42.5 2.814
5 0.487 45 2.949
6 0.565 47.5 3.082
7 0.641 50 3.215
8 0.715 52.5 3.346
9 0.788 55 3.476
10 0.859 57.5 3.605
12 0.998 60 3.733
14 1.132 62.5 3.860
16 1.263 65 3.987
18 1.391 67.5 4.112
20 1.517 70 4.236
22.5 1.670 75 4.483
25 1.821 80 4.726
27.5 1.969 85 4.967
30 2.115 90 5.206
32.5 2.258 95 5.442
35 2.400 100 5.676
------------------------------------------------------------------------
(iv) Insulation systems, used for the purpose of reducing venting
capacity, must be approved by the approval agency. In all cases,
insulation systems approved for this purpose must:
(A) Remain effective at all temperatures up to 649 deg.C (1200.2
deg.F); and
(B) Be jacketed with a material having a melting point of 700
deg.C (1292 deg.F) or greater.
(i) Approval, inspection and testing. Approval procedures for UN
portable tanks are specified in Sec. 178.273. Inspection and testing
requirements are specified in Sec. 180.605 of this subchapter.
63. Section 178.276 would be added to subpart H to read as follows:
Sec. 178.276 Requirements for the design, construction, inspection and
testing of portable tanks intended for the transportation of liquefied
compressed gases.
(a) In addition to the requirements of Sec. 178.274 applicable to
UN portable tanks, the following requirements apply to UN portable
tanks used for liquefied compressed gases. In addition to the
definitions in Sec. 178.274, the following definitions apply:
Design pressure means the pressure to be used in calculations
required by the ASME Code (incorporated by reference, see Sec. 171.7 of
this subchapter). The design pressure must be not less than the highest
of the following pressures:
(i) The maximum effective gauge pressure allowed in the shell
during filling or discharge; or
(ii) The sum of:
(A) The maximum effective gauge pressure to which the shell is
designed as defined in this paragraph under ``MAWP''; and
(B) A head pressure determined on the basis of the dynamic forces
specified in paragraph (h) of this section, but not less than 0.35 bar
(35 kPa).
Note to Paragraph (a)(1): For the purpose of this section, the
term ``design pressure'' as used in this specification is identical
to the term ``maximum allowable working pressure'' as used in the
ASME Code, Section VIII.
(2) Design reference temperature means the temperature at which the
vapor pressure of the contents is determined for the purpose of
calculating the MAWP. The value for each portable tank type is as
follows:
(i) Shell with a diameter of 1.5 meters or less: 65 deg.C; or
(ii) Shell with a diameter of more than 1.5 meters:
(A) Without insulation or sun shield: 60 deg.C;
(B) With sun shield: 55 deg.C; and
(C) With insulation: 50 deg.C.
(3) Filling density means the average mass of liquefied compressed
gas per liter of shell capacity (kg/l).
(4) Maximum allowable working pressure (MAWP) means a pressure that
must be not less than the highest of the following pressures measured
at the top of the shell while in operating position, but in no case
less than 7 bar (700 kPa):
(i) The maximum effective gauge pressure allowed in the shell
during filling or discharge; or
(ii) The maximum effective gauge pressure to which the shell is
designed, which must be:
(A) Not less than the pressure specified for each liquefied
compressed gas listed in portable tank special provision T50; and
(B) Not less than the sum of:
(1) The absolute vapor pressure (in bar) of the liquefied
compressed gas at the design reference temperature minus 1 bar; and
(2) The partial pressure (in bar) of air or other gases in the
ullage space which is determined by the design reference temperature
and the liquid phase expansion due to the increase of the mean bulk
temperature of tr-tf (tf = filling
temperature, usually 15 deg.C, tr = 50 deg.C maximum mean
bulk temperature);
(b) General design and construction requirements. (1) Tanks must be
of seamless or welded steel construction, or combination of both, and
have a water capacity greater than 450 liters (118.9 gallons). Tanks
must be designed, constructed, certified and stamped in accordance with
the ASME Code, Section VIII (incorporated by reference, see Sec. 171.7
of this subchapter).
(2) Portable tanks must be postweld heat-treated and radiographed
as prescribed in the ASME Code, except that each portable tank
constructed in accordance with part UHT of the ASME Code must be
postweld heat-treated. Where postweld heat treatment is required, the
portable tank must be treated as a unit after completion of all the
welds in and/or to the shell and heads. The method must be as
prescribed in the ASME Code. Welded attachments to pads may be made
after postweld heat treatment is made. A portable tank used for
anhydrous ammonia must be postweld heat-treated. The postweld heat
treatment must be as prescribed in the ASME Code, but in no event at
less than 1050 deg.F tank metal temperature. Additionally, portable
tanks constructed in accordance with part UHT of the ASME Code must
conform to the following requirements:
(i) Welding procedure and welder performance tests must be made
annually in accordance with section IX of the ASME Code. In addition to
the essential variables named therein, the following must be considered
to be essential variables: number of passes, thickness of plate, heat
input per pass, and manufacturer's identification of rod and flux. The
number of passes, thickness of plate and heat input per pass may not
vary more than 25 percent from the procedure qualification. Records of
the qualification must be retained for at least 5 years by the tank
manufacturer and made available to duly identified representatives of
the Department of Transportation or the owner of the tank.
(ii) Impact tests must be made on a lot basis. A lot is defined as
100 tons or less of the same heat and having a thickness variation no
greater than plus or minus 25 percent. The minimum impact required for
full-sized specimens shall be 20 foot-pounds (or 10 foot-pounds for
half-sized specimens) at 0 deg. F Charpy V-Notch in both the
longitudinal and transverse direction. If the lot test does not pass
this requirement, individual plates may be accepted if they
individually meet this impact requirement.
(3) Welding procedures and welder performance tests must be made
annually in accordance with Section IX of the ASME Code. In addition to
the essential variables named therein, the following must be considered
to be essential variables: number of passes, thickness of plate, heat
input per pass, and manufacturer's identification of rod and flux. The
number of passes,
[[Page 63430]]
thickness of plate and heat input per pass may not vary more than 25%
from the procedure qualification. Records of the qualification must be
retained for at least 5 years by the portable tank manufacturer and
made available to the approval agency and the owner of the tank as
specified in Sec. 178.273.
(4) Impact tests must be made on a lot basis. A lot is defined as
100 tons or less of raw material of the same heat and having a
thickness variation no greater than plus or minus 25%. The minimum
impact required for full-sized specimens must be 20 foot-pounds (or 10
foot-pounds for half-sized specimens) at 0 deg. F Charpy V-Notch in
both the longitudinal and transverse direction. If the lot test does
not pass this requirement, individual plates may be accepted if they
individually meet this impact requirement.
(5) When the shells intended for the transportation of liquefied
compressed gases are equipped with thermal insulation, a device must be
provided to prevent any dangerous pressure from developing in the
insulating layer in the event of a leak, when the protective covering
is so closed as to be gas-tight. The thermal insulation must not
inhibit access to the fittings and discharge devices. In addition, the
thermal insulation systems must satisfy the following requirements:
(i) Consist of a shield covering not less than the upper third, but
not more than the upper half of the surface of the shell, and separated
from the shell by an air space of approximately 40 mm across; or
(ii) Consist of a complete cladding of insulating materials. The
insulation must be of adequate thickness and constructed to prevent the
ingress of moisture and damage to the insulation. The insulation and
cladding must have a thermal conductance of not more than 0.67
(Wm-2K-1) under normal
conditions of transportation.
(c) Service equipment. (1) All openings with a diameter of more
than 1.5 mm (.1 inch) in shells of portable tanks, except openings for
pressure-relief devices, inspection openings and closed bleed holes,
must be fitted with at least three mutually independent shut-off
devices in series: the first being an internal stop-valve, excess flow
valve, integral excess flow valve, or excess flow feature device (see
Sec. 178.337-1(g)), the second being an external stop-valve and the
third being a blank flange or equivalent device.
(2) When a portable tank is fitted with an excess flow valve, the
excess flow valve must be so fitted that its seating is inside the
shell or inside a welded flange or, when fitted externally, its
mountings must be designed so that in the event of impact it must
maintain its effectiveness. The excess flow valves must be selected and
fitted so as to close automatically when the rated flow specified by
the manufacturer is reached. Connections and accessories leading to or
from such a valve must have a capacity for a flow more than the excess
flow valve's rated flow.
(3) For filling and discharge openings, the first shut-off device
must be an internal stop-valve and the second must be a stop-valve
placed in an accessible position on each discharge and filling pipe.
(4) For filling and discharge bottom openings of portable tanks
intended for the transportation of flammable and/or toxic liquefied
compressed gases, the internal stop-valve must be a quick closing
safety device that closes automatically in the event of unintended
movement of the portable tank during filling or discharge or fire
engulfment. Except for portable tanks having a capacity of not more
than 1,000 liters (264.2 gallons), it must be possible to operate this
device by remote control.
(5) In addition to filling, discharge and gas pressure equalizing
orifices, shells may have openings in which gauges, thermometers and
manometers can be fitted. Connections for such instruments must be made
by suitable welded nozzles or pockets and may not be connected by
screwed connections through the shell.
(6) All portable tanks must be fitted with manholes or other
inspection openings of suitable size to allow for internal inspection
and adequate access for maintenance and repair of the interior.
(d) Bottom openings. Bottom openings are prohibited on portable
tanks when the portable tank special provision T50 in
Sec. 172.102(c)(7) of this subchapter indicates that bottom openings
are not allowed. In this case, there may be no openings located below
the liquid level of the shell when it is filled to its maximum
permissible filling limit.
(e) Pressure relief devices. (1) Portable tanks must be provided
with one or more reclosing pressure relief devices. The pressure relief
devices must open automatically at a pressure not less than the MAWP
and be fully open at a pressure equal to 110% of the MAWP. These
devices must, after discharge, close at a pressure not less than 10%
below the pressure at which discharge starts and must remain closed at
all lower pressures. The pressure relief devices must be of a type that
will resist dynamic forces including liquid surge. A frangible disc may
only be used in series with a reclosing pressure relief device.
(2) Pressure relief devices must be designed to prevent the entry
of foreign matter, the leakage of gas and the development of any
dangerous excess pressure.
(3) Portable tanks intended for the transportation of certain
liquefied compressed gases identified in portable tank special
provision T50 in Sec. 172.102 of this subchapter must have a pressure
relief device which conforms to the requirements of this subchapter.
Unless a portable tank in dedicated service is fitted with a relief
device constructed of materials compatible with the hazardous material,
the relief device must comprise a frangible disc preceded by a
reclosing device. The space between the frangible disc and the device
must be provided with a pressure gauge or a suitable tell-tale
indicator. This arrangement must facilitate the detection of disc
rupture, pinholing or leakage which could cause a malfunction of the
pressure relief device. The frangible discs must rupture at a nominal
pressure 10% above the start-to-discharge pressure of the relief
device.
(4) In the case of portable tanks used for more than one gas, the
pressure relief devices must open at a pressure indicated in paragraph
(f) of this section for the gas having the highest maximum allowable
pressure of the gases allowed to be transported in the portable tank.
(f) Capacity of relief devices. The combined delivery capacity of
the relief devices must be sufficient so that, in the event of total
fire engulfment, the pressure inside the shell cannot exceed 120% of
the MAWP. Reclosing relief devices must be used to achieve the full
relief capacity prescribed. In the case of portable tanks used for more
than gas, the combined delivery capacity of the pressure relief devices
must be taken for the liquefied compressed gas which requires the
highest delivery capacity of the liquefied compressed gases allowed to
be transported in the portable tank. The total required capacity of the
relief devices must be determined according to the requirements in
Sec. 178.275(h). These requirements apply only to liquefied compressed
gases which have critical temperatures well above the temperature at
the accumulating condition. For gases which have critical temperatures
near or below the temperature at the accumulating condition, the
calculation of the pressure relief device delivery capacity must
consider the additional thermodynamic properties of the gas (for
example, CGA S-1.2-1995;
[[Page 63431]]
incorporated by reference, see Sec. 171.7 of this subchapter).
64. A new Sec. 178.277 would be added to subpart H to read as
follows:
Sec. 178.277 Requirements for the design, construction, inspection and
testing of portable tanks intended for the transportation of
refrigerated liquefied gases.
(a) In addition to the requirements of Sec. 178.274 applicable to
UN portable tanks, the following requirements and definitions apply to
UN portable tanks used for refrigerated liquefied gases:
(1) Design pressure. For the purpose of this section the term
design pressure is consistent with the definition for design pressure
in the ASME Code, Section VIII (incorporated by reference, see
Sec. 171.7 of this subchapter).
(2) Holding time is the time, as determined by testing, that will
elapse from loading until the pressure of the contents, under
equilibrium conditions, reaches the lowest set pressure of the pressure
limiting device(s) (for example, pressure control valve or pressure
relief device). Holding time must be determined as specified in
Sec. 178.338-9.
(3) Maximum allowable working pressure (MAWP) means the maximum
effective gauge pressure permissible at the top of the shell of a
loaded portable tank in its operating position including the highest
effective pressure during filling and discharge;
(4) Minimum design temperature means the temperature which is used
for the design and construction of the shell not higher than the lowest
(coldest) service temperature of the contents during normal conditions
of filling, discharge and transportation.
(5) Shell means the part of the portable tank which retains the
refrigerated liquefied gas intended for transport, including openings
and their closures, but does not include service equipment or external
structural equipment.
(6) Tank means a construction which normally consists of either :
(i) A jacket and one or more inner shells where the space between
the shell(s) and the jacket is exhausted of air (vacuum insulation) and
may incorporate a thermal insulation system; or
(ii) A jacket and an inner shell with an intermediate layer of
solid thermally insulating material (for example, solid foam).
(b) General design and construction requirements. (1) Portable
tanks must be of seamless or welded steel construction and have a water
capacity of more than 450 liters (118.9 gallons). Portable tanks must
be designed, constructed, certified and stamped in accordance with the
ASME Code (incorporated by reference, see Sec. 171.7 of this
subchapter).
(2) Portable tanks must be postweld heat treated and radiographed
as prescribed in the ASME Code except that each tank constructed in
accordance with part UHT of the ASME Code must be postweld heat
treated. Where postweld heat treatment is required, the tank must be
treated as a unit after completion of all the welds to the shell and
heads. The method must be as prescribed in the ASME Code. Welded
attachments to pads may be made after postweld heat treatment is made.
The postweld heat treatment must be as prescribed in the ASME Code, but
in no event at less than 1050 deg.F tank metal temperature.
(3) Welding procedure and welder performance tests must be made
annually in accordance with Section IX of the ASME Code (incorporated
by reference, see Sec. 171.7 of this subchapter). In addition to the
essential variables named in the ASME Code, the following must be
considered as essential variables: number of passes, thickness of
plate, heat input per pass, and the specified rod and flux. The number
of passes, thickness of plate and heat input per pass may not vary more
than 25% from the procedure qualification. Records of the qualification
must be retained for at least 5 years by the portable tank manufacturer
and made available to the approval agency and the owner of the portable
tank as specified in Sec. 178.273.
(4) Impact tests must be made on a lot basis. A lot is defined as
100 tons or less of the same heat and having a thickness variation no
greater than plus or minus 25%. The minimum impact required for full-
sized specimens must be 20 foot-pounds (or 10 foot-pounds for half-
sized specimens) at 0 deg.F Charpy V-Notch in both the longitudinal
and transverse direction. If the lot test does not pass this
requirement, individual plates may be accepted if they individually
meet this impact requirement.
(5) Shells and jackets must be made of metallic materials suitable
for forming. Jackets must be made of steel. Non-metallic materials may
be used for the attachments and supports between the shell and jacket,
provided their material properties at the minimum design temperature
are proven to be sufficient. In choosing the material, the minimum
design temperature must be taken into account with respect to risk of
brittle fracture, to hydrogen embrittlement, to stress corrosion
cracking and to resistance to impact.
(6) Any part of a portable tank, including fittings, gaskets and
pipe-work, which can be expected normally to come into contact with the
refrigerated liquefied gas transported must be compatible with that
refrigerated liquefied gas.
(7) The thermal insulation system must include a complete covering
of the shell with effective insulating materials. External insulation
must be protected by a jacket so as to prevent the ingress of moisture
and other damage under normal transport conditions.
(8) When a jacket is so closed as to be gas-tight, a device must be
provided to prevent any dangerous pressure from developing in the
insulation space.
(9) Materials which may react with oxygen or oxygen enriched
atmospheres in a dangerous manner may not be used in portable tanks
intended for the transport of refrigerated liquefied gases having a
boiling point below minus 182 deg.C at atmospheric pressure in
locations with the thermal insulation where there is a risk of contact
with oxygen or with oxygen enriched fluid.
(10) Insulating materials must not deteriorate unduly in service.
(11) A reference holding time must be determined for each
refrigerated liquefied gas intended for transport in a portable tank.
The reference holding time must be determined by testing in accordance
with the requirements of Sec. 178.338-9, considering the following
factors:
(i) The effectiveness of the insulation system, determined in
accordance with paragraph (b)(12) of this section;
(ii) The lowest set pressure of the pressure limiting device;
(iii) The initial filling conditions;
(iv) An assumed ambient temperature of 30 deg.C (86 deg.F);
(v) The physical properties of the individual refrigerated
liquefied gas intended to be transported.
(12) The effectiveness of the insulation system (heat influx in
watts) may be determined by type testing the portable tank in
accordance with a procedure specified in Sec. 178.338-9(c) or by using
the holding time test in Sec. 178.338-9(b). This test must consist of
either:
(i) A constant pressure test (for example, at atmospheric pressure)
when the loss of refrigerated liquefied gas is measured over a period
of time; or
(ii) A closed system test when the rise in pressure in the shell is
measured over a period of time.
(13) When performing the constant pressure test, variations in
atmospheric pressure must be taken into account. When performing either
test, corrections must be made for any variation of the ambient
temperature from the assumed
[[Page 63432]]
ambient temperature reference value of 30 deg.C (86 deg.F).
(14) The jacket of a vacuum-insulated double-wall tank must have
either an external design pressure not less than 100 kPa (1 bar) gauge
pressure calculated in accordance with the ASME Code or a calculated
critical collapsing pressure of not less than 200 kPa (2 bar) gauge
pressure. Internal and external reinforcements may be included in
calculating the ability of the jacket to resist the external pressure.
Note to paragraph (b): For the determination of the actual
holding time as indicated by paragraphs (b)(11), (12) and (13) of
this section, before each journey, refer to Sec. 178.338-9(b).
(c) Design criteria. For shells with vacuum insulation, the test
pressure must not be less than 1.3 times the sum of the MAWP and 100
kPa (1 bar). In no case may the test pressure be less than 300 kPa (3
bar) gauge pressure.
(d) Service equipment. (1) Each filling and discharge opening in
portable tanks used for the transport of flammable refrigerated
liquefied gases must be fitted with at least three mutually independent
shut-off devices in series: the first being a stop-valve situated as
close as reasonably practicable to the jacket, the second being a stop-
valve and the third being a blank flange or equivalent device. The
shut-off device closest to the jacket must be a quick closing device,
which closes automatically in the event of unintended movement of the
portable tank during filling or discharge or fire engulfment. This
device must be operable by remote control.
(2) Each filling and discharge opening in portable tanks used for
the transport of non-flammable refrigerated liquefied gases must be
fitted with at least two mutually independent shut-off devices in
series: the first being a stop-valve situated as close as reasonably
practicable to the jacket and the second a blank flange or equivalent
device.
(3) For sections of piping which can be closed at both ends and
where liquid product can be trapped, a method of automatic pressure
relief must be provided to prevent excess pressure build-up within the
piping.
(4) Each connection on a portable tank must be clearly marked to
indicate its function.
(5) When pressure-building units are used, the liquid and vapor
connections to that unit must be provided with a valve as close to the
jacket as reasonably practicable to prevent the loss of contents in
case of damage to the pressure-building unit.
(6) The materials of construction of valves and accessories must
have satisfactory properties at the lowest operating temperature of the
portable tank.
(e) Pressure relief devices. (1) Every shell must be provided with
not less than two independent reclosing pressure relief devices. The
pressure relief devices must open automatically at a pressure not less
than the MAWP and be fully open at a pressure equal to 110% of the
MAWP. These devices must, after discharge, close at a pressure not
lower than 10% below the pressure at which discharge starts and must
remain closed at all lower pressures. The pressure relief devices must
be of the type that will resist dynamic forces including surge.
(2) Except for portable tanks used for oxygen, portable tanks for
non-flammable refrigerated liquefied gases (except oxygen) and hydrogen
may in addition have frangible discs in parallel with the reclosing
devices as specified in paragraphs (e)(4)(ii) and (e)(4)(iii) of this
section.
(3) Pressure relief devices must be designed to prevent the entry
of foreign matter, the leakage of gas and the development of any
dangerous excess pressure.
(4) Capacity and setting of pressure relief devices. (i) In the
case of the loss of vacuum in a vacuum-insulated tank or of loss of 20%
of the insulation of a tank insulated with solid materials, the
combined capacity of all pressure relief devices installed must be
sufficient so that the pressure (including accumulation) inside the
shell does not exceed 120% of the MAWP.
(ii) For non-flammable refrigerated liquefied gases (except oxygen)
and hydrogen, this capacity may be achieved by the use of frangible
discs in parallel with the required safety-relief devices. Frangible
discs must rupture at nominal pressure equal to the test pressure of
the shell.
(iii) Under the circumstances described in paragraphs (e)(4)(i) and
(e)(4)(ii) of this section, together with complete fire engulfment, the
combined capacity of all pressure relief devices installed must be
sufficient to limit the pressure in the shell to the test pressure.
(iv) The required capacity of the relief devices must be calculated
in accordance with CGA Pamphlet S-1-1.2 (incorporated by reference, see
Sec. 171.7 of this subchapter).
65. In Sec. 178.703, paragraph (a)(1) introductory text would be
revised and in paragraph (a)(1)(ii), a new sentence would be added at
the end of the paragraph to read as follows:
Sec. 178.703 Marking of intermediate bulk containers.
(a) * * *
(1) Mark every IBC in a durable and clearly visible manner (may be
applied in a single line or in multiple lines provided the correct
sequence is followed) with the following information in letters,
numerals and symbols of at least 12 mm in height and in the sequence
presented:
* * * * *
(ii) * * * The letter ``W'' must follow the IBC design type
identification code on an IBC when the IBC differs from the
requirements in subpart N of this part, or is tested using methods
other than those specified in this subpart, and is approved by the
Associate Administrator in accordance with the provisions in
Sec. 178.801(i).
* * * * *
66. In Sec. 178.705, paragraph (c)(1)(iv)(A) would be revised and a
new paragraph (c)(1)(iv)(C) would be added to read as follows:
Sec. 178.705 Standards for metal intermediate bulk containers.
* * * * *
(c) * * *
(1) * * *
(iv) * * *
(A) For a reference steel having a product of Rm X Ao = 10,000,
where Ao is the minimum elongation (as a percentage) of the reference
steel to be used on fracture under tensile stress, (Rm X Ao = 10,000 X
145; if tensile strength is in U.S. Standard units of pounds per square
inch) the wall thickness must not be less than:
----------------------------------------------------------------------------------------------------------------
Wall thickness (T) in mm
------------------------------------------------------------------------------------------
Capacity (C) in Types 11A, 11B, 11N Types 21A, 21B, 21N, 31A, 31B, 31N
liters1 ------------------------------------------------------------------------------------------
Unprotected Protected Unprotected Protected
----------------------------------------------------------------------------------------------------------------
C 1000 2.0 1.5 2.5 2.0
1000 C T=C/2000 + 1.5 T=C/2000 + 1.0 T=C/2000 + 2.0 T=C/2000 + 1.5
2000
[[Page 63433]]
2000 C T=C/2000 + 1.5 T=C/2000 + 1.0 T=C/1000 + 1.0 T=C/2000 + 1.5
3000
----------------------------------------------------------------------------------------------------------------
1 Where: gallons = liters x 0.264.
* * * * *
(C) For purposes of the calculation described in paragraph
(c)(1)(iv)(B) of this section, the guaranteed minimum tensile strength
of the metal to be used (Rm1) must be the minimum value
according to material standards. However, for austenitic (stainless)
steels, the specified minimum value for Rm, according to the material
standards, may be increased by up to 15% when a greater value is
provided in the material inspection certificate. When no material
standard exists for the material in question, the value of Rm must be
the minimum value indicated in the material inspection certificate.
* * * * *
67. In Sec. 178.801, in paragraph (i), two sentences would be added
at the end of the paragraph to read as follows:
Sec. 178.801 General requirements.
* * * * *
(i) * * * A large packaging, as defined in Sec. 171.8 of this
subchapter, may be used if approved by the Associate Administrator. The
large packaging must conform to the construction standards, performance
testing and packaging marking requirements specified in the UN
Recommendations (incorporated by reference, see Sec. 171.7 of this
subchapter)
* * * * *
68. In Sec. 178.812, paragraph (c)(1) would be revised and a new
paragraph (c)(3) would be added to read as follows:
Sec. 178.812 Top lift test.
* * * * *
(c) Test method. (1) A metal or flexible IBC must be lifted in the
manner for which it is designed until clear of the floor and maintained
in that position for a period of five minutes.
* * * * *
(3) If not tested as indicated in paragraph (c)(1) of this section,
a flexible IBC design type must be tested as follows:
(i) Fill the flexible IBC to 95% full with a material
representative of the product to be shipped.
(ii) Suspend the flexible IBC by its lifting devices.
(iii) Apply a constant downward force through a specially designed
platen. The platen will be a minimum of 60% and a maximum of 80% of the
cross sectional surface area of the flexible IBC.
(iv) The combination of the mass of the filled flexible IBC and the
force applied through the platen must be a minimum of six times the
maximum net mass of the flexible IBC. The test must be conducted for a
period of five minutes.
(v) Other equally effective methods of top lift testing and
preparation may be used with approval of the Associate Administrator.
* * * * *
PART 180--CONTINUING QUALIFICATION AND MAINTENANCE OF PACKAGINGS
69. The authority citation for part 180 would continue to read as
follows:
Authority: 49 U.S.C. 5101-5127; 49 CFR 1.53.
70. Subpart G would be added to part 180 to read as follows:
Subpart G--Qualification and Maintenance of Portable Tanks
Sec.
180.601 Applicability.
180.603 Qualification of portable tanks.
180.605 Requirements for retest, inspection or repair of portable
tanks.
Subpart G--Qualification and Maintenance of Portable Tanks
Sec. 180.601 Applicability.
This subpart prescribes requirements, in addition to those
contained in parts 107, 171, 172, 173, and 178 of this subchapter,
applicable to any person responsible for the continuing qualification,
maintenance or periodic retesting of a portable tank.
Sec. 180.603 Qualification of portable tanks.
(a) Each portable tank used for the transportation of hazardous
materials must be an authorized packaging.
(b) To qualify as an authorized packaging, each portable tank must
conform to the requirements of this subchapter or the applicable
specification to which the portable tank was constructed.
(c) The following portable tanks are authorized for use provided
they conform to all applicable safety requirements of this subchapter:
51, 56, 57, 60, IM 101, IM 102 and UN portable tanks.
(d) A portable tank that also meets the definition of ``container''
in 49 CFR 450.3(a)(3) must conform to the requirements in parts 450
through 453 of this tile for compliance with Annex II of the Convention
for Safe Containers (CSC).
(e) Exemption portable tanks based on DOT 51 portable tanks. The
owner of a portable tank constructed in accordance with and used under
an exemption issued prior to August 31, 1996, which was in conformance
with the requirements for Specification DOT 51 portable tanks with the
exception of the location of fill and discharge outlets, shall examine
the portable tank and its design to determine if it meets the outlet
requirements in effect on October 1, 1999. If the owner determines that
the portable tank is in compliance with all requirements of the DOT 51
specification, the exemption number stenciled on the portable tank
shall be removed and the specification plate (or a plate placed
adjacent to the specification plate) shall be durably marked ``DOT 51-
E*****'' (where ***** is to be replaced by the exemption number).
During the period the portable tank is in service, and for one year
thereafter, the owner of the portable tank must retain on file at its
principal place of business a copy of the last exemption in effect.
Sec. 180.605 Requirements for retest, inspection or repair of portable
tanks.
(a) A portable tank constructed in accordance with a DOT
specification for which a test or inspection specified in this section
has become due, may not be filled and offered for transportation or
transported until the test or inspection has been successfully
completed. This paragraph (a) does not apply to any portable tank
filled prior to the test or inspection due date.
(b) Conditions requiring test and inspection of portable tanks.
Without regard to any other test or inspection requirements, a
Specification or UN portable tank must be tested and inspected in
accordance with this section prior to further use if any of the
following conditions exist:
(1) The portable tank shows evidence of bad dents, corroded or
abraded areas,
[[Page 63434]]
leakage, or any other condition that might render it unsafe for
transportation service.
(2) The portable tank has been in an accident and has been damaged
to an extent that may adversely affect its ability to retain the
hazardous material.
(3) The portable tank has been out of hazardous materials
transportation service for a period of one year or more.
(4) The portable tank has been modified from its original design
specification.
(5) The Department so requires based on the existence of probable
cause that the portable tank is in an unsafe operating condition.
(c) Schedule for initial and periodic inspections and tests. Each
Specification portable tank must be tested and inspected in accordance
with the following schedule:
(1) Each IM or UN portable tank must be given an initial inspection
and test before being placed into service, a periodic inspection and
test at least once every five years, and an intermediate periodic
inspection and test at least every 2.5 years following the last five-
year periodic inspection and test.
(2) Each Specification 51 portable tank must be given a periodic
inspection and test at least once every five years.
(3) Each Specification 56 or 57 portable tank must be given a
periodic inspection and test at least once every 2.5 years.
(4) Each Specification 60 portable tank must be given a periodic
inspection and test at the end of the first 4-year period after the
original test; at least once every 2 years thereafter up to a total of
12 years of service; and at least once annually thereafter. Retesting
is not required on a rubber-lined tank except before each relining.
(d) Initial inspection and test. The initial inspection and test of
a portable tank must include the following:
(1) A check of the design characteristics;
(2) An internal and external examination of the portable tank and
its fittings, taking into account the hazardous materials to be
transported;
(3) A hydrostatic pressure test as specified in paragraph (i) of
this section;
(4) A leakage test;
(5) A test of the satisfactory operation of all service equipment
including pressure relief devices must also be performed. When the
shell and its fittings have been pressure-tested separately, they must
be subjected to a leakage test after reassembly. All welds subject to
full stress level in the shell must be inspected during the initial
test by radiographic, ultrasonic, or another suitable non-destructive
test method. This does not apply to the jacket;
(6) A UN portable tank that meets the definition of ``container''
in the CSC (see 49 CFR 450.3(a)(2)) must be subjected to an impact test
using a prototype representing each design type. The prototype portable
tank must be shown to be capable of absorbing the forces resulting from
an impact not less than 4 times (4 g) the maximum permissable gross
mass of the fully loaded portable tank at a duration typical of the
mechanical shocks experienced in rail transportation. A listing of
standards describing methods acceptable for performing the impact test
are provided in the UN Recommendations (incorporated by reference, see
Sec. 171.7 of this subchapter);
(7) The following tests must be completed on a portable tank that
is also a CSC container without leakage or deformation that would
render the tank unsuitable for transportation and use:
(i) Longitudinal inertia. The tank loaded to its maximum gross
weight must be positioned with its longitudinal axis vertical. It shall
be held in this position for five minutes by support at the lower end
of the base structure providing vertical and lateral restraint and by
support at the upper end of the base structure providing lateral
restraint only.
(ii) Lateral inertia. The tank loaded to its maximum gross weight
must be positioned for five minutes with its transverse axis vertical.
It shall be held in this position for five minutes by support at the
lower side of the base structure providing vertical and lateral
restraint and by support at the upper side of the base structure
providing lateral restraint only.
(e) Intermediate periodic inspection and test. The intermediate
periodic inspection and test must include at least an internal and
external examination of the portable tank and its fittings taking into
account the hazardous materials intended to be transported; a leakage
test; and a test of the satisfactory operation of all service
equipment. Sheathing, thermal insulation, etc. need only to be removed
to the extent required for reliable appraisal of the condition of the
portable tank. For portable tanks intended for the transportation of a
single hazardous material, the internal examination may be waived if it
is leakage tested in accordance with the procedures in paragraph (i) of
this section prior to each filling, or if approved by the Associate
Administrator.
(f) Periodic inspection and test. The periodic inspection and test
must include an internal and external examination and, unless excepted,
a hydraulic pressure test as specified in this section. Sheathing,
thermal insulation, etc. need only to be removed to the extent required
for reliable appraisal of the condition of the portable tank. Reclosing
pressure relief devices must be removed from the tank and tested
separately. For portable tanks where the shell and equipment have been
pressure-tested separately, after assembly they must be subjected
together to a leakage test.
(g) Exceptional inspection and test. The exceptional inspection and
test is necessary when a portable tank shows evidence of damaged or
corroded areas, or leakage, or other conditions that indicate a
deficiency that could affect the integrity of the portable tank. The
extent of the exceptional inspection and test must depend on the amount
of damage or deterioration of the portable tank. It must include at
least the intermediate inspection and a hydrostatic test according
paragraph (e) of this section. Pressure relief devices need not be
tested or replaced unless there is reason to believe the relief devices
have been affected by the damage or deterioration.
(h) Internal and external examination. The internal and external
examinations must ensure that:
(1) The shell is inspected for pitting, corrosion, or abrasions,
dents, distortions, defects in welds or any other conditions, including
leakage, that might render the portable tank unsafe for transportation;
(2) The piping, valves, and gaskets are inspected for corroded
areas, defects, and other conditions, including leakage, that might
render the portable tank unsafe for filling, discharge or
transportation;
(3) Devices for tightening manhole covers are operative and there
is no leakage at manhole covers or gaskets;
(4) Missing or loose bolts or nuts on any flanged connection or
blank flange are replaced or tightened;
(5) All emergency devices and valves are free from corrosion,
distortion and any damage or defect that could prevent their normal
operation. Remote closure devices and self-closing stop-valves must be
operated to demonstrate proper operation;
(6) Required markings on the portable tank are legible and in
accordance with the applicable requirements; and
(7) The framework, the supports and the arrangements for lifting
the portable tank are in satisfactory condition.
(i) Pressure test procedures for specification 51, 57, 60, IM or UN
portable tanks. (1) Each Specification 57 portable tank must be leak
tested by a
[[Page 63435]]
minimum sustained air pressure of at least three psig applied to the
entire tank. Each Specification 51 or 56 portable tank must be tested
by a minimum pressure (air or hydrostatic) of at least 2 psig or at
least one and one-half times the design pressure (maximum allowable
working pressure, or re-rated pressure) of the tank, whichever is
greater. Leakage tests for all other portable tanks must be at a
pressure of at least 25% of MAWP. During each air pressure test, the
entire surface of all joints under pressure must be coated with or
immersed in a solution of soap and water, heavy oil, or other material
suitable for the purpose of detecting leaks, but in no case less than
five minutes. The pressure must be held for a period of time
sufficiently long to assure detection of leaks. During the air or
hydrostatic test, relief devices may be removed, but all the closure
fittings must be in place and the relief device openings plugged.
Lagging need not be removed from a lagged tank if it is possible to
maintain the required test pressure at constant temperature with the
tank disconnected from the source of pressure.
(2) Each Specification 60 portable tank must be retested by
completely filling the tank with water or other liquid having a similar
viscosity, the temperature of which shall not exceed 100 deg.F during
the test, and applying a pressure of 60 psig. The tank shall be capable
of holding the prescribed pressure for at least 10 minutes without
leakage, evidence of impending failure, or failure. All closures shall
be in place while the test is made and the pressure shall be gauged at
the top of the tank. Safety devices and/or vents shall be plugged
during this test.
(3) Each Specification IM or UN portable tank, except for UN
portable tanks used for liquefied compressed gases and all piping,
valves and accessories, except pressure relief devices, must be
hydrostatically tested with water, or other liquid of similar density
and viscosity, to a pressure not less than 150% of its maximum
allowable working pressure. UN portable tanks used for liquefied
compressed gases must be hydrostatically tested with water, or other
liquid of similar density and viscosity, to a pressure not less than
130% of its maximum allowable working pressure. The minimum test
pressure for a portable tank is determined on the basis of the
hazardous materials that are intended to be transported in the tanks.
Minimum test pressure for specific hazardous materials are specified in
the applicable T Codes assigned to a particular hazardous material in
the Sec. 172.101 Table of this subchapter. While under pressure the
tank shall be inspected for leakage, distortion, or any other condition
which might render the tank unsafe for service. A portable tank fails
to meet the requirements of the pressure test if, during the test,
there is permanent distortion of the tank exceeding that permitted by
the applicable specification; if there is any leakage; or if there are
any deficiencies. Any portable tank that fails must be rejected and may
not be used again for the transportation of a hazardous material unless
the tank is adequately repaired, and, thereafter, a successful test is
conducted in accordance with the requirements of this paragraph. An
approval agency shall witness the hydrostatic test. Any damage or
deficiency that might render the portable tank unsafe for service shall
be repaired to the satisfaction of the witnessing approval agency. The
repaired tank must be hydrostatically retested. Upon successful
completion of the hydrostatic test, the witnessing approval agency
shall apply its name, identifying mark or identifying number in
accordance with paragraph (l) of this section.
(j) Rejection criteria. When evidence of any unsafe condition is
discovered, the portable tank may not be returned to service until it
has been corrected and the pressure test is repeated and passed.
(k) Repair. The repair of a portable tank is authorized, provided
such repairs are made in accordance with the requirements prescribed in
the specification for the tank's original design and construction. In
addition to any other provisions of the specification, no portable tank
may be repaired so as to cause leakage or cracks or the likelihood of
leakage or cracks near areas of stress concentration due to cooling
metal shrinkage in welding operations, sharp fillets, reversal of
stresses, or otherwise. No field welding may be done except to non-
pressure parts. In all cases, when cutting, burning or welding
operations on the shell have been affected, that work must be done with
the approval of the approval agency and be done in accordance with the
requirements of this subchapter, taking into account the pressure
vessel code used for the construction of the shell. A pressure test to
the original test pressure must be performed after the work is
completed.
(l) Inspection and test markings. Each portable tank must be
durably and legibly marked, in English, with the date (month and year)
of the last hydrostatic test, the identification markings of the
approval agency witnessing the test when required, and the date of the
last visual inspection. The marking must be placed on or near the metal
identification plate in letters not less than 3 mm (0.118 inches) high
when on the metal identification plate and 32 mm (1.25 inches) high
when on the portable tank.
(m) Record retention. The owner of each portable tank or his
authorized agent shall retain a written record of the date and results
of all required inspections and tests, and the name and address of the
person performing the inspection or test, until the next retest has
been satisfactorily completed and recorded. In addition, a
manufacturer's data report of the portable tank must be procured and
retained in the files of the owner during the time that such portable
tank is used for such service, except for Specifications 56 and 57
portable tanks.
Issued in Washington, DC on August 16, 2000, under authority
delegated in 49 CFR part 106.
Robert A. McGuire,
Associate Administrator for Hazardous Materials Safety.
[FR Doc. 00-21417 Filed 10-20-00; 8:45 am]
BILLING CODE 4910-60-P