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UN/NA 1974 · Chlorodifluorobromomethane
UN/NA 1974 · ERG 2024 · Guide 126
- UN/NA
- 1974
- Edition
- ERG 2024
ERG 2024 lists UN/NA 1974 (Chlorodifluorobromomethane) under Guide 126, titled “Gases - Compressed or Liquefied (Including Refrigerant Gases)”.
Material name
1974 on a placard, orange panel or shipping paper
It can stand for either of two ERG 2024 entries: “Chlorodifluorobromomethane” and “Refrigerant gas R-12B1”. Both use Guide 126, so the number alone is enough to find the guide. On a numbered orange panel, 1974 is the lower number (how to read an orange panel).
ERG 2024 markings for 1974
1974 is not highlighted in green (no Table 1 entry), and its guide number 126 has no P.
Entries near 1974
By number (yellow pages): before 1974 come UN/NA 1971 Methane, compressed (Guide 115); UN/NA 1972 Liquefied natural gas (cryogenic liquid) (Guide 115) and UN/NA 1973 Chlorodifluoromethane and chloropentafluoroethane mixture (Guide 126); after it, UN/NA 1975 Nitric oxide and dinitrogen tetroxide mixture (Guide 124); UN/NA 1976 Octafluorocyclobutane (Guide 126) and UN/NA 1977 Nitrogen, refrigerated liquid (cryogenic liquid) (Guide 120).
By name (blue pages): “Chlorodifluorobromomethane” comes after Chlorocresols, solid (UN/NA 3437, Guide 152) and Chlorocresols, solution (UN/NA 2669, Guide 152) and before Chlorodifluoromethane (UN/NA 1018, Guide 126) and Chlorodifluoromethane and chloropentafluoroethane mixture (UN/NA 1973, Guide 126).
By name (blue pages): “Refrigerant gas R-12B1” comes after Red phosphorus (UN/NA 1338, Guide 133) and Refrigerant gas R-12 (UN/NA 1028, Guide 126) and before Refrigerant gas R-12B2 (UN/NA 1941, Guide 171) and Refrigerant gas R-13 (UN/NA 1022, Guide 126).
Other names starting with “Refrigerant”: Refrigerant gas R-13B1 (UN/NA 1009, Guide 126); Refrigerant gas R-14 (UN/NA 1982, Guide 126); Refrigerant gas R-21 (UN/NA 1029, Guide 126); Refrigerant gas R-23 (UN/NA 1984, Guide 126); Refrigerant gas R-32 (UN/NA 3252, Guide 115) and Refrigerant gas R-40 (UN/NA 1063, Guide 115).
Guide 126 · Library
Guide 126 covers 42 UN/NA numbers. The 12 around 1974 in the guide’s number order: UN/NA 1950 Aerosols; UN/NA 1952 Ethylene oxide and carbon dioxide mixture, with not more than 9% ethylene oxide; UN/NA 1956 Compressed gas, n.o.s.; UN/NA 1958 1,2-Dichloro-1,1,2,2-tetrafluoroethane; UN/NA 1968 Insecticide gas, n.o.s.; UN/NA 1973 Chlorodifluoromethane and chloropentafluoroethane mixture; UN/NA 1976 Octafluorocyclobutane; UN/NA 1982 Refrigerant gas R-14; UN/NA 1983 1-Chloro-2,2,2-trifluoroethane; UN/NA 1984 Refrigerant gas R-23; UN/NA 2193 Hexafluoroethane; UN/NA 2422 Octafluorobut-2-ene.
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.