UN1021

1-Chloro-1,2,2,2-tetrafluoroethane Refrigerant gas R 124

Class 2.2
UN Number
UN1021
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 UN1021.

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