HazMat Tool — substance information

Gas cartridges, (flammable) without a release device, non-refillable

HMT 15 June 2026

UN / ID: UN 2037
Hazard class: 2.1
Packing group: n/a (multiple — see tabs)
ERG guide: ERG 115
Special provisions: —
Source: 49 CFR §172 (15 June 2026)

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Gas cartridges, (flammable) without a release device, non-refillable

Emergency Response Guide No. 115

Hazardous Materials Table

Source: 49 CFR §172 (15 June 2026)

Packing group
Packing group
Packing group

(3) Hazard Class

2.1
Flammable gases

(7) Special Provisions (§172.102)

(8) Packing Authorizations (§173.***)

(8A) Exceptions	306	see 49 CFR §173.306
(8B) Non-bulk	304	see 49 CFR §173.304
(8C) Bulk	None

(9) Quantity Limits

(9A) Passenger aircraft/rail	1 kg
(9B) Cargo aircraft only	15 kg

(3) Hazard Class

2.1
Flammable gases

(7) Special Provisions (§172.102)

(8) Packing Authorizations (§173.***)

(8A) Exceptions	306	see 49 CFR §173.306
(8B) Non-bulk	304	see 49 CFR §173.304
(8C) Bulk	None

(9) Quantity Limits

(9A) Passenger aircraft/rail	1 kg
(9B) Cargo aircraft only	15 kg

(3) Hazard Class

2.2
Non-toxic, non-flammable gases

(7) Special Provisions (§172.102)

(8) Packing Authorizations (§173.***)

(8A) Exceptions	306	see 49 CFR §173.306
(8B) Non-bulk	304	see 49 CFR §173.304
(8C) Bulk	None

(9) Quantity Limits

(9A) Passenger aircraft/rail	1 kg
(9B) Cargo aircraft only	15 kg

(3) Hazard Class

2.2
Non-toxic, non-flammable gases

(7) Special Provisions (§172.102)

×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.

A14	This material is not authorized to be transported as a limited quantity or consumer commodity in accordance with § 173.306 of this subchapter when transported aboard an aircraft. Browse special provision A14

(8) Packing Authorizations (§173.***)

(8A) Exceptions	306	see 49 CFR §173.306
(8B) Non-bulk	304	see 49 CFR §173.304
(8C) Bulk	None

(9) Quantity Limits

(9A) Passenger aircraft/rail	1 kg
(9B) Cargo aircraft only	15 kg

(10) Vessel stowage

(10A) Location

Stowage category “B” means

(i) The material may be stowed “on deck” or “under deck” on a cargo vessel and on a passenger vessel carrying a number of passengers limited to not more than the larger of 25 passengers, or one passenger per each 3 m of overall vessel length; and
(ii) “On deck only” on passenger vessels in which the number of passengers specified in paragraph (k)(2)(i) of this section is exceeded.

Source: 49 CFR §172.101(k)

(10B) Other

40	see 49 CFR §176.84
157	see 49 CFR §176.84

Source: 49 CFR §176.84

Packing group comparison

Multiple packing groups apply to this entry. See assignment criteria in 49 CFR §173 Subpart D. Details are in the tabs above; differences are highlighted.

	PG n/a	PG n/a	PG n/a	PG n/a
1
2	Gas cartridges, (flammable) without a release device, non-refillable	Receptacles, small, containing gas or gas cartridges (flammable) without release device, not refillable and not exceeding 1 L capacity	Receptacles, small, containing gas or gas cartridges (non-flammable) without release device, not refillable and not exceeding 1 L capacity	Receptacles, small, containing gas or gas cartridges (oxidizing), without release device, not refillable and not exceeding 1 L capacity
3	2.1	2.1	2.2	2.2
4	UN 2037	UN 2037	UN 2037	UN 2037
5	n/a	n/a	n/a	n/a
6	2.1	2.1	2.2	2.2, 5.1
7	n/a	n/a	n/a	, A14
8A	306	306	306	306
8B	304	304	304	304
8C	None	None	None	None
9A	1 kg	1 kg	1 kg	1 kg
9B	15 kg	15 kg	15 kg	15 kg
10A	B	B	B	B
10B	40, 157	40, 157	40, 157	40, 157

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.

Hazard class	8	7	6.1	5.2	5.1	4.3	4.2	4.1	3	2.3B	2.3A	2.2	2.1	1.6	1.5	1.4	1.3	1.1/1.2
1.1/1.2
1.3
1.4
1.5
1.6
2.1
2.2
2.3A
2.3B
3
4.1
4.2
4.3
5.1
5.2
6.1
7
8

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

Similar substances

UN / ID	Proper shipping name	Hazard class
UN 2037	Receptacles, small, containing gas or gas cartridges (flammable) without release device, not refillable and not exceeding 1 L capacity	2.1
UN 2037	Receptacles, small, containing gas or gas cartridges (non-flammable) without release device, not refillable and not exceeding 1 L capacity	2.2