UN1956 — Compressed gas, n.o.s

Class 2.2

Quick facts: UN1956

What it is
Compressed gas, n.o.s
Hazard class
2.2
Packing group
None assigned
Label
Division 2.2 - Non-flammable, Non-toxic Gas
Packaging (49 CFR 173)
Exceptions §173.306, 307 · Non-bulk §173.302, 305 · Bulk §173.314, 315
Air limit per package
Passenger aircraft: 75 kg · Cargo aircraft: 150 kg

Source: 49 CFR 172.101 Hazardous Materials Table — UN1956 (2025-01-01)

UN Number
UN1956
Hazard Class
2.2
Packing Group
Not assigned

Hazard Labels / Marks

  • Division 2.2 - Non-flammable, Non-toxic 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 UN1956.

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