Articles, pyrophoric

Data from the Hazardous Materials Table

Source: 49 CFR §172 (2018/07)

(3) Hazard Class

Compatibility group of explosives - Description of substances or article to be classified

Group: L

Explosive substance or article containing an explosive substance and presenting a special risk (e.g., due to water-activation or presence of hybergolic liquids, phosphides or pyrophoric substances) needing isolation of each type.

Source: 49 CFR §173.52

(7) Special Provisions (§172.102)

(8) Packing Authorizations (§173.***)

(8A) Exceptions	None
(8B) Non-bulk	62	see 49 CFR §173.62
(8C) Bulk	None

(9) Quantity Limits

(9A) Passenger aircraft/rail	Forbidden
(9B) Cargo aircraft only	Forbidden

(10) Vessel stowage

(10A) Location

Stowage category “05” means the material may be stowed “on deck” in closed cargo transport units on a cargo vessel (up to 12 passengers) but the material is prohibited on a passenger vessel.

Source: 49 CFR §172.101(k)

(10B) Other

25	Protected from sources of heat
14E	On deck, cargo transport unit must be steel.
15E	On deck, cargo transport unit must be leakproof.
17E	On deck stowage is recommended.

Source: 49 CFR §176.84

Segregation Chart for Load, Transport, Storage

In this table a statement is contained for each hazard class whether the loading, transport or storage with other hazard classes is allowed, is not permitted or is restricted. The table is based on U.S.-Code 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

	May not be loaded, transported, or stored together in the same transport vehicle or storage facility.
	Load, transport, storage together is not restricted.
	Load, transport, storage together is allowed under restrictions.

Substances with similar name

UN-Number	Name	Hazard Class
UN 1854	Barium alloys, pyrophoric	4.2
UN 1855	Calcium, pyrophoric or Calcium alloys, pyrophoric	4.2
NA 2845	Ethyl phosphonous dichloride, anhydrous pyrophoric liquid	6.1
NA 2845	Methyl phosphonous dichloride, pyrophoric liquid	6.1
UN 3392	Organometallic substance, liquid, pyrophoric	4.2
UN 3394	Organometallic substance, liquid, pyrophoric, water-reactive	4.2
UN 3391	Organometallic substance, solid, pyrophoric	4.2
UN 3393	Organometallic substance, solid, pyrophoric, water-reactive	4.2
UN 3194	Pyrophoric liquid, inorganic, n.o.s	4.2
UN 2845	Pyrophoric liquids, organic, n.o.s	4.2
UN 1383	Pyrophoric metals, n.o.s., or Pyrophoric alloys, n.o.s	4.2
UN 2846	Pyrophoric solids, organic, n.o.s	4.2
UN 2441	Titanium trichloride, pyrophoric or Titanium trichloride mixtures, pyrophoric	4.2