###### Editorial Note on Part 173

#### Editorial Note:

Nomenclature changes to part 173 appear at 70 FR 56098, Sept. 23, 2005.

#### § 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 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) |

UN Portable Tank Table for Liquefied Compressed Gases and Chemicals Under Pressure

[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]