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United Nations/North American Number Datasheet

UN/NA 1972

2.1 - Flammable gas

Emergency Response Guidebook (ERG, 2024)

A caution icon. The ERG recommendations are developed for use during the initial phase of transportation incidents; they are not intended for spills at facilities.

Material Names

  • Liquefied natural gas (cryogenic liquid)
  • LNG (cryogenic liquid)
  • Methane, refrigerated liquid (cryogenic liquid)
  • Natural gas, refrigerated liquid (cryogenic liquid)
ERG book cover

Response Guide 115

Gases - Flammable (Including Refrigerated Liquids) Gases - Inflamables (Incluyendo Líquidos Refrigerados) Gaz - Inflammables (Incluant des Liquides Réfrigérés)

 

There are no initial isolation and protective action distances listed in the ERG.

The ERG doesn't predict that large amounts of toxic-by-inhalation gases will be produced if this material is spilled in water.

Hazmat Table (49 CFR 172.101)

UN/NA Proper Shipping Name Hazard Class Labels Notes*

* There are three notes: (1) whether the displayed information is for domestic (U.S.) or international shipping (if neither is specifically indicated, it applies to both), (2) whether the proper shipping name must include one or more technical names of the hazardous material in parentheses, and (3) whether the hazardous material is an inhalation hazard.
UN Methane, refrigerated liquid (cryogenic liquid) or Natural gas, refrigerated liquid (cryogenic liquid, with high methane content) 2.1 2.1

  2.1 - Flammable gas