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UN/NA 3159 · Refrigerant gas R-134a
UN/NA 3159 · ERG 2024 · Guide 126
- UN/NA
- 3159
- Edition
- ERG 2024
ERG 2024 lists UN/NA 3159 (Refrigerant gas R-134a) under Guide 126, titled “Gases - Compressed or Liquefied (Including Refrigerant Gases)”.
Material name
3159 on a placard, orange panel or shipping paper
It can stand for either of two ERG 2024 entries: “Refrigerant gas R-134a” and “1,1,1,2-Tetrafluoroethane”. Both use Guide 126, so the number alone is enough to find the guide. On a numbered orange panel, 3159 is the lower number (how to read an orange panel).
ERG 2024 markings for 3159
3159 is not highlighted in green (no Table 1 entry), and its guide number 126 has no P.
Entries near 3159
By number (yellow pages): before 3159 come UN/NA 3156 Compressed gas, oxidizing, n.o.s. (Guide 122); UN/NA 3157 Liquefied gas, oxidizing, n.o.s. (Guide 122) and UN/NA 3158 Gas, refrigerated liquid, n.o.s. (Guide 120); after it, UN/NA 3160 Liquefied gas, poisonous, flammable, n.o.s. (Guide 119); UN/NA 3161 Liquefied gas, flammable, n.o.s. (Guide 115) and UN/NA 3162 Liquefied gas, poisonous, n.o.s. (Guide 123).
By name (blue pages): “Refrigerant gas R-134a” comes after Refrigerant gas R-125 (UN/NA 3220, Guide 126) and Refrigerant gas R-133a (UN/NA 1983, Guide 126) and before Refrigerant gas R-142b (UN/NA 2517, Guide 115) and Refrigerant gas R-143a (UN/NA 2035, Guide 115).
By name (blue pages): “1,1,1,2-Tetrafluoroethane” comes after 1,1,1-Trichloroethane (UN/NA 2831, Guide 160) and 1,1,1-Trifluoroethane (UN/NA 2035, Guide 115) and before 1,1,2,2-Tetrachloroethane (UN/NA 1702, Guide 151) and 1,2-Butylene oxide, stabilized (UN/NA 3022, Guide 127P).
Other names starting with “Refrigerant”: Refrigerant gas R-115 (UN/NA 1020, Guide 126); Refrigerant gas R-116 (UN/NA 2193, Guide 126); Refrigerant gas R-124 (UN/NA 1021, Guide 126); Refrigerant gas R-152a (UN/NA 1030, Guide 115); Refrigerant gas R-161 (UN/NA 2453, Guide 115) and Refrigerant gas R-218 (UN/NA 2424, Guide 126).
Guide 126 · Library
Guide 126 covers 42 UN/NA numbers. The 12 around 3159 in the guide’s number order: UN/NA 2422 Octafluorobut-2-ene; UN/NA 2424 Octafluoropropane; UN/NA 2599 Chlorotrifluoromethane and trifluoromethane azeotropic mixture with approximately 60% chlorotrifluoromethane; UN/NA 2602 Dichlorodifluoromethane and difluoroethane azeotropic mixture with approximately 74% dichlorodifluoromethane; UN/NA 2857 Refrigerating machines, containing ammonia solutions (UN2672); UN/NA 3070 Ethylene oxide and dichlorodifluoromethane mixture, with not more than 12.5% ethylene oxide; UN/NA 3163 Liquefied gas, n.o.s.; UN/NA 3164 Articles, pressurized, hydraulic (containing non-flammable gas); UN/NA 3220 Pentafluoroethane; UN/NA 3296 Heptafluoropropane; UN/NA 3297 Ethylene oxide and chlorotetrafluoroethane mixture, with not more than 8.8% ethylene oxide; UN/NA 3298 Ethylene oxide and pentafluoroethane mixture, with not more than 7.9% ethylene oxide.
Source: ERG 2024 (U.S. DOT PHMSA, Transport Canada, SICT Mexico), for the initial phase of a transportation incident only. Hazora is not an official ERG publication and is not affiliated with or endorsed by these or any other government agencies.