ADR code 20
Hazard identification number (Kemler) per ADR 2025.
asphyxiant gas or gas with no subsidiary hazard
Substances using code 20
- UN 1002 — AIR, COMPRESSED
- UN 1006 — ARGON, COMPRESSED
- UN 1009 — BROMOTRIFLUORO-METHANE (REFRIGERANT GAS R 13B1)
- UN 1013 — CARBON DIOXIDE
- UN 1018 — CHLORODIFLUORO-METHANE (REFRIGERANT GAS R 22)
- UN 1020 — CHLOROPENTAFLUORO- ETHANE (REFRIGERANT GAS R 115)
- UN 1021 — 1-CHLORO-1,2,2,2- TETRAFLUOROETHANE (REFRIG...
- UN 1022 — CHLOROTRIFLUORO-METHANE (REFRIGERANT GAS R 13)
- UN 1028 — DICHLORODIFLUORO-METHANE (REFRIGERANT GAS R 12)
- UN 1029 — DICHLOROFLUORO-METHANE (REFRIGERANT GAS R 21)
- UN 1046 — HELIUM, COMPRESSED
- UN 1056 — KRYPTON, COMPRESSED
- UN 1058 — LIQUEFIED GASES, non-flammable, charged wit...
- UN 1065 — NEON, COMPRESSED
- UN 1066 — NITROGEN, COMPRESSED
- UN 1078 — REFRIGERANT GAS, N.O.S., such as mixture F1...
- UN 1080 — SULPHUR HEXAFLUORIDE
- UN 1858 — HEXAFLUOROPROPYLENE (REFRIGERANT GAS R 1216)
- UN 1952 — ETHYLENE OXIDE AND CARBON DIOXIDE MIXTURE w...
- UN 1956 — COMPRESSED GAS, N.O.S.
- UN 1958 — 1,2-DICHLORO-1,1,2,2- TETRAFLUOROETHANE (RE...
- UN 1968 — INSECTICIDE GAS, N.O.S.
- UN 1973 — CHLORODIFLUORO-METHANE AND CHLOROPENTAFLUOR...
- UN 1974 — CHLORODIFLUOROBROMO- METHANE (REFRIGERANT G...
- UN 1976 — OCTAFLUOROCYCLO-BUTANE (REFRIGERANT GAS RC 318)
- UN 1982 — TETRAFLUOROMETHANE (REFRIGERANT GAS R 14)
- UN 1983 — 1-CHLORO-2,2,2- TRIFLUOROETHANE (REFRIGERAN...
- UN 1984 — TRIFLUOROMETHANE (REFRIGERANT GAS R 23)
- UN 2036 — XENON
- UN 2073 — AMMONIA SOLUTION, relative density less tha...
- UN 2193 — HEXAFLUOROETHANE (REFRIGERANT GAS R 116)
- UN 2422 — OCTAFLUOROBUT-2-ENE (REFRIGERANT GAS R 1318)
- UN 2424 — OCTAFLUOROPROPANE (REFRIGERANT GAS R 218)
- UN 2599 — CHLOROTRIFLUORO-METHANE AND TRIFLUOROMETHAN...
- UN 2602 — DICHLORODIFLUORO-METHANE AND 1,1-DIFLUOROET...
- UN 3070 — ETHYLENE OXIDE AND DICHLORODIFLUORO- METHAN...
- UN 3159 — 1,1,1,2-TETRAFLUOROETHANE (REFRIGERANT GAS R 134a)
- UN 3163 — LIQUEFIED GAS, N.O.S.
- UN 3220 — PENTAFLUOROETHANE (REFRIGERANT GAS R 125)
- UN 3296 — HEPTAFLUOROPROPANE (REFRIGERANT GAS R 227)
- UN 3297 — ETHYLENE OXIDE AND CHLOROTETRAFLUORO- ETHAN...
- UN 3298 — ETHYLENE OXIDE AND PENTAFLUOROETHANE MIXTUR...
- UN 3299 — ETHYLENE OXIDE AND TETRAFLUOROETHANE MIXTUR...
- UN 3337 — REFRIGERANT GAS R 404A (Pentafluoroethane, ...
- UN 3338 — REFRIGERANT GAS R 407A (Difluoromethane, pe...
- UN 3339 — REFRIGERANT GAS R 407B (Difluoromethane, pe...
- UN 3340 — REFRIGERANT GAS R 407C (Difluoromethane, pe...
- UN 3500 — CHEMICAL UNDER PRESSURE, N.O.S.