UN1972 — Methane, refrigerated liquid Natural gas, refrigerated liquid

Class 2.1

Quick facts: UN1972

What it is
Methane, refrigerated liquid Natural gas, refrigerated liquid (cryogenic liquid) or
Hazard class
2.1
Packing group
None assigned
Label
Division 2.1 - Flammable Gas
Packaging (49 CFR 173)
Non-bulk §173.318, 319
Air limit per package
Passenger aircraft: Forbidden · Cargo aircraft: Forbidden
Special provisions
T75, TP5, 439, 440

Source: 49 CFR 172.101 Hazardous Materials Table — UN1972 (2025-01-01)

UN Number
UN1972
Hazard Class
2.1
Packing Group
Not assigned

Hazard Labels / Marks

  • Division 2.1 - Flammable Gas

Source: 49 CFR §172.101 Hazardous Materials Table · 49 CFR §172.101 (2025-01-01)

Reference data transcribed from the published Dangerous Goods List. It is not legal advice and may not capture entry-specific exceptions, special provisions or packing-group ranges. Always verify against the current regulation edition for a specific shipment.

This is the reference entry for UN1972.

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