View all text of Subpart G [§ 173.300 - § 173.340]

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

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) 1005Ammonia, anhydrous29.0Allowed§ 178.276(e)(3)0.53 25.7 22.0 19.7 1009Bromotrifluoromethane or Refrigerant gas R 13B138.0AllowedNormal1.13 34.0 30.0 27.5 1010Butadienes, stabilized7.5AllowedNormal0.55 7.0 7.0 7.0 1011Butane7.0AllowedNormal0.51 7.0 7.0 7.0 1012Butylene8.0AllowedNormal0.53 7.0 7.0 7.0 1017Chlorine19.0Not§ 178.276(e)(3)1.25 17.0Allowed 15.0 13.5 1018Chlorodifluoromethane or Refrigerant gas R 2226.0AllowedNormal1.03 24.0 21.0 19.0 1020Chloropentafluoroethane or Refrigerant gas R 11523.0AllowedNormal1.06 20.0 18.0 16.0 10211-Chloro-1,2,2,2-tetrafluoroethane or Refrigerant gas R 12410.3AllowedNormal1.2 9.8 7.9 7.0 1027Cyclopropane18.0AllowedNormal0.53 16.0 14.5 13.0 1028Dichlorodifluoromethane or Refrigerant gas R 1216.0AllowedNormal1.15 15.0 13.0 11.5 1029Dichlorofluoromethane or Refrigerant gas R 217.0AllowedNormal1.23 7.0 7.0 7.0 10301,1-Difluoroethane or Refrigerant gas R 152a16.0AllowedNormal0.79 14.0 12.4 11.0 1032Dimethylamine, anhydrous7.0AllowedNormal0.59 7.0 7.0 7.0 1033Dimethyl ether15.5AllowedNormal0.58 13.8 12.0 10.6 1036Ethylamine7.0AllowedNormal0.61 7.0 7.0 7.0 1037Ethyl chloride7.0AllowedNormal0.8 7.0 7.0 7.0 1040Ethylene oxide with nitrogen up to a total pressure of 1MPa (10 bar) at 50 °COnly authorized in 10 bar insulated portable tanks—Not Allowed§ 178.276(e)(3)0.78 1041Ethylene oxide and carbon dioxide mixture with more than 9% but not more than 87% ethylene oxideSee MAWP definition in § 178.276(a)AllowedNormalSee § 173.32(f) 1055Isobutylene8.1AllowedNormal0.52 7.0 7.0 7.0 1060Methyl acetylene and propadiene mixture, stabilized28.0AllowedNormal0.43 24.5 22.0 20.0 1061Methylamine, anhydrous10.8AllowedNormal0.58 9.6 7.8 7.0 1062Methyl bromide7.0Not Allowed§ 178.276(e)(3)1.51 7.0 7.0 7.0 1063Methyl chloride or Refrigerant gas R 4014.5AllowedNormal0.81 12.7 11.3 10.0 1064Methyl mercaptan7.0Not Allowed§ 178.276(e)(3)0.78 7.0 7.0 7.0 1067Dinitrogen tetroxide7.0Not Allowed§ 178.276(e)(3)1.3 7.0 7.0 7.0 1075Petroleum gas, liquefiedSee MAWP definition in § 178.276(a)AllowedNormalSee § 173.32(f) 1077Propylene28.0AllowedNormal0.43 24.5 22.0 20.0 1078Refrigerant gas, n.o.s.See MAWP definition in § 178.276(a)AllowedNormalSee § 173.32(f) 1079Sulphur dioxide11.6Not Allowed§ 178.276(e)(3)1.23 10.3 8.5 7.6 1082Trifluorochloroethylene, stabilized or Refrigerant gas R 111317.0Not Allowed§ 178.276(e)(3)1.13 15.0 13.1 11.6 1083Trimethylamine, anhydrous7.0AllowedNormal0.56 7.0 7.0 7.0 1085Vinyl bromide, stabilized7.0AllowedNormal1.37 7.0 7.0 7.0 1086Vinyl chloride, stabilized10.6AllowedNormal0.81 9.3 8.0 7.0 1087Vinyl methyl ether, stabilized7.0AllowedNormal0.67 7.0 7.0 7.0 1581Chloropicrin and methyl bromide mixture7.0Not Allowed§ 178.276(e)(3)1.51 7.0 7.0 7.0 1582Chloropicrin and methyl chloride mixture19.2Not Allowed§ 178.276(e)(3)0.81 16.9 15.1 13.1 1858Hexafluoropropylene compressed or Refrigerant gas R 121619.2AllowedNormal1.11 16.9 15.1 13.1 1912Methyl chloride and methylene chloride mixture15.2AllowedNormal0.081 13.0 11.6 10.1 NA, 1954Insecticide gases, flammable, n.o.s.See MAWP definition in § 178.276(a)AllowedNormal§ 173.32(f) 19581,2-Dichloro-1,1,2,2-tetrafluoroethane or Refrigerant gas R 1147.0AllowedNormal1.3 7.0 7.0 7.0 1965Hydrocarbon gas, mixture liquefied, n.o.s.See MAWP definition in 178.276(a)AllowedNormalSee § 173.32(f) 1969Isobutane8.5AllowedNormal0.49 7.5 7.0 7.0 1973Chlorodifluoromethane and chloropentafluoroethane mixture with fixed boiling point, with approximately 49% chlorodifluoromethane or Refrigerant gas R 50228.3AllowedNormal1.05 25.3 22.8 20.3 1974Chlorodifluorobromomethane or Refrigerant gas R 12B17.4AllowedNormal1.61 7.0 7.0 7.0 1976Octafluorocyclobutane or Refrigerant gas RC 3188.8AllowedNormal1.34 7.8 7.0 7.0 1978Propane22.5AllowedNormal0.42 20.4 18.0 16.5 19831-Chloro-2,2,2-trifluoroethane or Refrigerant gas R 133a7.0AllowedNormal1.18 7.0 7.0 7.0 20351,1,1-Trifluoroethane compressed or Refrigerant gas R 143a31.0AllowedNormal0.76 27.5 24.2 21.8 2424Octafluoropropane or Refrigerant gas R 21823.1AllowedNormal1.07 20.8 18.6 16.6 25171-Chloro-1,1-difluoroethane or Refrigerant gas R 142b8.9AllowedNormal0.99 7.8 7.0 7.0 2602Dichlorodifluoromethane and difluoroethane azeotropic mixture with approximately 74% dichlorodifluoromethane or Refrigerant gas R 50020.0AllowedNormal1.01 18.0 16.0 14.5 3057Trifluoroacetyl chloride14.6Not allowed§ 178.276(e)(3)1.17 12.9 11.3 9.9 3070Ethylene oxide and dichlorodifluoromethane mixture with not more than 12.5% ethylene oxide14.0Allowed§ 178.276(e)(3)1.09 12.0 11.0 9.0 3153Perfluoro (methyl vinyl ether)14.3AllowedNormal1.14 13.4 11.2 10.2 31591,1,1,2-Tetrafluoroethane or Refrigerant gas R 134a17.7AllowedNormal1.04 15.7 13.8 12.1 3161Liquefied gas, flammable, n.o.s.See MAWP definition in § 178.276(a)AllowedNormal§ 173.32(f) 3163Liquefied gas, n.o.s.See MAWP definition in § 178.276(a)AllowedNormal§ 173.32(f) 3220Pentafluoroethane or Refrigerant gas R 12534.4 30.8 27.5 24.5AllowedNormal0.87 3252Difluoromethane or Refrigerant gas R 3243.0AllowedNormal0.78 39.0 34.4 30.5 3296Heptafluoropropane or Refrigerant gas R 22716.0AllowedNormal1.2 14.0 12.5 11.0 3297Ethylene oxide and chlorotetrafluoroethane mixture, with not more than 8.8% ethylene oxide8.1AllowedNormal1.16 7.0 7.0 7.0 3298Ethylene oxide and pentafluoroethane mixture, with not more than 7.9% ethylene oxide25.9AllowedNormal1.02 23.4 20.9 18.6 3299Ethylene oxide and tetrafluoroethane mixture, with not more than 5.6% ethylene oxide16.7AllowedNormal1.03 14.7 12.9 11.2 3318Ammonia solution, relative density less than 0.880 at 15 °C in water, with more than 50% ammoniaSee MAWP definition in § 178.276(a)Allowed§ 178.276(e)(3)§ 173.32(f) 3337Refrigerant gas R 404A31.6AllowedNormal0.84 28.3 25.3 22.5 3338Refrigerant gas R 407A31.3AllowedNormal0.95 28.1 25.1 22.4 3339Refrigerant gas R 407B33.0AllowedNormal0.95 29.6 26.5 23.6 3340Refrigerant gas R 407C29.9AllowedNormal0.95 26.8 23.9 21.3 3500Chemical under pressure, n.o.sSee MAWP definition in § 178.276(a)Allowed§ 178.276(e)(3)See TP4 in § 172.102(c) 3501Chemical under pressure, flammable, n.o.sSee MAWP definition in § 178.276(a)Allowed§ 178.276(e)(3)See TP4 in § 172.102(c) 3502Chemical under pressure, toxic, n.o.sSee MAWP definition in § 178.276(a)Allowed§ 178.276(e)(3)See TP4 in § 172.102(c) 3503Chemical under pressure, corrosive, n.o.sSee MAWP definition in § 178.276(a)Allowed§ 178.276(e)(3)See TP4 in § 172.102(c) 3504Chemical under pressure, flammable, toxic, n.o.sSee MAWP definition in § 178.276(a)Allowed§ 178.276(e)(3)See TP4 in § 172.102(c) 3505Chemical under pressure, flammable, corrosive, n.o.sSee 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]