政策法规现行有效美国危险品合规

§ 173.313 UN Portable Tank Table for Liquefied Compressed Gases and Chemical Under Pressure.

效力	法规类型	发布日期	生效日期	发文机构
现行有效	部门规章	2026-08-07	2026-09-08	Code of Federal Regulations (CFR) - Transportation (Title 49)

发布08-07

生效09-08

摘要总结AI 辅助解读

本条款为美国联邦法规第49篇（DOT）关于液化压缩气体及加压化学品使用T50便携式罐体运输的技术规范。它详细列出了各类UN编号物质在2026-09-08生效后的最小设计压力、底部开口要求、泄压装置规格及最大充装密度。该表格直接引用§172.102(c)(7)(iii)，是判定危险品包装合规性的核心依据，直接影响出口至美国的危化品物流操作与成本核算。

The UN Portable Tank Table for Liquefied Compressed Gases and chemical under pressure is referenced in § 172.102(c)(7)(iii) of this subchapter for portable tanks that are used to transport liquefied compressed gases and chemicals under pressure. The table applies to each liquefied compressed gas and chemical under pressure that is identified with Special Provision T50 in Column (7) of the Hazardous Materials Table in § 172.101. In addition to providing the UN identification number and proper shipping name, the table provides the minimum design pressures, bottom opening requirements, pressure relief device requirements, and degree of filling requirements for liquefied compressed gases and chemicals under pressure permitted for transportation in a T50 portable tank. In the minimum design pressure column, “small” means a portable tank with a diameter of 1.5 meters or less when measured at the widest part of the shell, “sunshield” means a portable tank with a shield covering at least the upper third of the shell, “bare” means no sunshield or insulation is provided, and “insulated” means a complete cladding of sufficient thickness of insulating material necessary to provide a minimum conductance of not more than 0.67 w/m2/k. In the pressure relief requirements column, the word “Normal” denotes that a frangible disc as specified in § 178.276(e)(3) of this subchapter is not required.

UN Portable Tank Table for Liquefied Compressed Gases and Chemicals Under Pressure UN No. Non-refrigerated liquefied compressed gases Minimum design pressure (bar) small; bare; sunshield; insulated Openings below liquid level Pressure relief requirements ( See § 178.276(e)) Maximum filling density (kg/l) 1005 Ammonia, anhydrous 29.0 Allowed § 178.276(e)(3) 0.53 25.7 22.0 19.7 1009 Bromotrifluoromethane or Refrigerant gas R 13B1 38.0 Allowed Normal 1.13 34.0 30.0 27.5 1010 Butadienes, stabilized 7.5 Allowed Normal 0.55 7.0 7.0 7.0 1011 Butane 7.0 Allowed Normal 0.51 7.0 7.0 7.0 1012 Butylene 8.0 Allowed Normal 0.53 7.0 7.0 7.0 1017 Chlorine 19.0 Not § 178.276(e)(3) 1.25 17.0 Allowed 15.0 13.5 1018 Chlorodifluoromethane or Refrigerant gas R 22 26.0 Allowed Normal 1.03 24.0 21.0 19.0 1020 Chloropentafluoroethane or Refrigerant gas R 115 23.0 Allowed Normal 1.06 20.0 18.0 16.0 1021 1-Chloro-1,2,2,2-tetrafluoroethane or Refrigerant gas R 124 10.3 Allowed Normal 1.2 9.8 7.9 7.0 1027 Cyclopropane 18.0 Allowed Normal 0.53 16.0 14.5 13.0 1028 Dichlorodifluoromethane or Refrigerant gas R 12 16.0 Allowed Normal 1.15 15.0 13.0 11.5 1029 Dichlorofluoromethane or Refrigerant gas R 21 7.0 Allowed Normal 1.23 7.0 7.0 7.0 1030 1,1-Difluoroethane or Refrigerant gas R 152a 16.0 Allowed Normal 0.79 14.0 12.4 11.0 1032 Dimethylamine, anhydrous 7.0 Allowed Normal 0.59 7.0 7.0 7.0 1033 Dimethyl ether 15.5 Allowed Normal 0.58 13.8 12.0 10.6 1036 Ethylamine 7.0 Allowed Normal 0.61 7.0 7.0 7.0 1037 Ethyl chloride 7.0 Allowed Normal 0.8 7.0 7.0 7.0 1040 Ethylene oxide with nitrogen up to a total pressure of 1MPa (10 bar) at 50 °C Only authorized in 10 bar insulated portable tanks— Not Allowed § 178.276(e)(3) 0.78 1041 Ethylene oxide and carbon dioxide mixture with more than 9% but not more than 87% ethylene oxide See MAWP definition in § 178.276(a) Allowed Normal See § 173.32(f) 1055 Isobutylene 8.1 Allowed Normal 0.52 7.0 7.0 7.0 1060 Methyl acetylene and propadiene mixture, stabilized 28.0 Allowed Normal 0.43 24.5 22.0 20.0 1061 Methylamine, anhydrous 10.8 Allowed Normal 0.58 9.6 7.8 7.0 1062 Methyl bromide 7.0 Not Allowed § 178.276(e)(3) 1.51 7.0 7.0 7.0 1063 Methyl chloride or Refrigerant gas R 40 14.5 Allowed Normal 0.81 12.7 11.3 10.0 1064 Methyl mercaptan 7.0 Not Allowed § 178.276(e)(3) 0.78 7.0 7.0 7.0 1067 Dinitrogen tetroxide 7.0 Not Allowed § 178.276(e)(3) 1.3 7.0 7.0 7.0 1075 Petroleum gas, liquefied See MAWP definition in § 178.276(a) Allowed Normal See § 173.32(f) 1077 Propylene 28.0 Allowed Normal 0.43 24.5 22.0 20.0 1078 Refrigerant gas, n.o.s. See MAWP definition in § 178.276(a) Allowed Normal See § 173.32(f) 1079 Sulphur dioxide 11.6 Not Allowed § 178.276(e)(3) 1.23 10.3 8.5 7.6 1082 Trifluorochloroethylene, stabilized or Refrigerant gas R 1113 17.0 Not Allowed § 178.276(e)(3) 1.13 15.0 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 Allowed Normal 1.37 7.0 7.0 7.0 1086 Vinyl chloride, stabilized 10.6 Allowed Normal 0.81 9.3 8.0 7.0 1087 Vinyl methyl ether, stabilized 7.0 Allowed Normal 0.67 7.0 7.0 7.0 1581 Chloropicrin and methyl bromide mixture 7.0 Not Allowed § 178.276(e)(3) 1.51 7.0 7.0 7.0 1582 Chloropicrin and methyl chloride mixture 19.2 Not Allowed § 178.276(e)(3) 0.81 16.9 15.1 13.1 1858 Hexafluoropropylene compressed or Refrigerant gas R 1216 19.2 Allowed Normal 1.11 16.9 15.1 13.1 1912 Methyl chloride and methylene chloride mixture 15.2 Allowed Normal 0.081 13.0 11.6 10.1 NA, 1954 Insecticide gases, flammable , n.o.s. See MAWP definition in § 178.276(a) Allowed Normal § 173.32(f) 1958 1,2-Dichloro-1,1,2,2-tetrafluoroethane or Refrigerant gas R 114 7.0 Allowed Normal 1.3 7.0 7.0 7.0 1965 Hydrocarbon gas, mixture liquefied, n.o.s. See MAWP definition in 178.276(a) Allowed Normal See § 173.32(f) 1969 Isobutane 8.5 Allowed Normal 0.49 7.5 7.0 7.0 1973 Chlorodifluoromethane and chloropentafluoroethane mixture with fixed boiling point, with approximately 49% chlorodifluoromethane or Refrigerant gas R 502 28.3 Allowed Normal 1.05 25.3 22.8 20.3 1974 Chlorodifluorobromomethane or Refrigerant gas R 12B1 7.4 Allowed Normal 1.61 7.0 7.0 7.0 1976 Octafluorocyclobutane or Refrigerant gas RC 318 8.8 Allowed Normal 1.34 7.8 7.0 7.0 1978 Propane 22.5 Allowed Normal 0.42 20.4 18.0 16.5 1983 1-Chloro-2,2,2-trifluoroethane or Refrigerant gas R 133a 7.0 Allowed Normal 1.18 7.0 7.0 7.0 2035 1,1,1-Trifluoroethane compressed or Refrigerant gas R 143a 31.0 Allowed Normal 0.76 27.5 24.2 21.8 2424 Octafluoropropane or Refrigerant gas R 218 23.1 Allowed Normal 1.07 20.8 18.6 16.6 2517 1-Chloro-1,1-difluoroethane or Refrigerant gas R 142b 8.9 Allowed Normal 0.99 7.8 7.0 7.0 2602 Dichlorodifluoromethane and difluoroethane azeotropic mixture with approximately 74% dichlorodifluoromethane or Refrigerant gas R 500 20.0 Allowed Normal 1.01 18.0 16.0 14.5 3057 Trifluoroacetyl chloride 14.6 Not allowed § 178.276(e)(3) 1.17 12.9 11.3 9.9 3070 Ethylene oxide and dichlorodifluoromethane mixture with not more than 12.5% ethylene oxide 14.0 Allowed § 178.276(e)(3) 1.09 12.0 11.0 9.0 3153 Perfluoro (methyl vinyl ether) 14.3 Allowed Normal 1.14 13.4 11.2 10.2 3159 1,1,1,2-Tetrafluoroethane or Refrigerant gas R 134a 17.7 Allowed Normal 1.04 15.7 13.8 12.1 3161 Liquefied gas, flammable, n.o.s. See MAWP definition in § 178.276(a) Allowed Normal § 173.32(f) 3163 Liquefied gas, n.o.s. See MAWP definition in § 178.276(a) Allowed Normal § 173.32(f) 3220 Pentafluoroethane or Refrigerant gas R 125 34.4 30.8 27.5 24.5 Allowed Normal 0.87 3252 Difluoromethane or Refrigerant gas R 32 43.0 Allowed Normal 0.78 39.0 34.4 30.5 3296 Heptafluoropropane or Refrigerant gas R 227 16.0 Allowed Normal 1.2 14.0 12.5 11.0 3297 Ethylene oxide and chlorotetrafluoroethane mixture, with not more than 8.8% ethylene oxide 8.1 Allowed Normal 1.16 7.0 7.0 7.0 3298 Ethylene oxide and pentafluoroethane mixture, with not more than 7.9% ethylene oxide 25.9 Allowed Normal 1.02 23.4 20.9 18.6 3299 Ethylene oxide and tetrafluoroethane mixture, with not more than 5.6% ethylene oxide 16.7 Allowed Normal 1.03 14.7 12.9 11.2 3318 Ammonia solution, relative density less than 0.880 at 15 °C in water, with more than 50% ammonia See MAWP definition in § 178.276(a) Allowed § 178.276(e)(3) § 173.32(f) 3337 Refrigerant gas R 404A 31.6 Allowed Normal 0.84 28.3 25.3 22.5 3338 Refrigerant gas R 407A 31.3 Allowed Normal 0.95 28.1 25.1 22.4 3339 Refrigerant gas R 407B 33.0 Allowed Normal 0.95 29.6 26.5 23.6 3340 Refrigerant gas R 407C 29.9 Allowed Normal 0.95 26.8 23.9 21.3 3500 Chemical under pressure, n.o.s See MAWP definition in § 178.276(a) Allowed § 178.276(e)(3) See TP4 in § 172.102(c) 3501 Chemical under pressure, flammable, n.o.s See MAWP definition in § 178.276(a) Allowed § 178.276(e)(3) See TP4 in § 172.102(c) 3502 Chemical under pressure, toxic, n.o.s See MAWP definition in § 178.276(a) Allowed § 178.276(e)(3) See TP4 in § 172.102(c) 3503 Chemical under pressure, corrosive, n.o.s See MAWP definition in § 178.276(a) Allowed § 178.276(e)(3) See TP4 in § 172.102(c) 3504 Chemical under pressure, flammable, toxic, n.o.s See MAWP definition in § 178.276(a) Allowed § 178.276(e)(3) See TP4 in § 172.102(c) 3505 Chemical under pressure, flammable, corrosive, n.o.s See MAWP definition in § 178.276(a) Allowed § 178.276(e)(3) See TP4 in § 172.102(c)

[69 FR 76174, Dec. 20, 2004, as amended at 70 FR 34399, June 14, 2005; 78 FR 1091, Jan. 7, 2013; 87 FR 79782, Dec. 27, 2022]