HazMat Tool — substance information Reference only — not a shipping paper, placard mandate, or CVI record.

Fire extinguishers containing compressed or liquefied gas

HMT 15 June 2026
Reference only — HMT snapshot for inspection and audit support; not a shipping paper, placard mandate, or CVI record. Use Print / PDF below for field notes.
UN / ID
UN 1044
Hazard class
2.2
Packing group
—
ERG guide
ERG 126
Special provisions
SP 110
Source
49 CFR §172 (15 June 2026)

Spot an error in this entry?

Fire extinguishers containing compressed or liquefied gas


Fire is the rapid oxidation of a fuel in the exothermic chemical process of combustion, releasing heat, light, and various reaction products. Flames, the most visible portion of the fire, are produced in the combustion reaction when the fuel reaches its ignition point temperature. Flames from hydrocarbon fuels consist primarily of carbon dioxide, water vapor, oxygen, and nitrogen. If hot enough, the gases may become ionized to produce plasma Wikipedia

Emergency Response Guide No. 126

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

(3) Hazard class

2.2
Non-toxic, non-flammable gases

(4) Identification number Help

UN 1044

(5) Packing Group Help

—

(6) Labels Help

Non-toxic, non-flammable gases (2.2)

(7) Special Provisions (§172.102) Help

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.
110

(8) Packing Authorizations (§173.***) Help

(8A) Exceptions309see 49 CFR §173.309
(8B) Non-bulk309see 49 CFR §173.309
(8C) BulkNone

(9) Quantity Limits Help

(9A) Passenger aircraft/rail75 kg
(9B) Cargo aircraft only150 kg

(10) Vessel stowage Help

(10A) Location
(10B) Other—

Segregation chart for load, transport, and storage

This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.

Prohibited Must not be loaded, transported, or stored together in the same vehicle or facility.
Permitted May be loaded, transported, or stored together.
Restricted May be loaded, transported, or stored together only with restrictions.