Explosives shipping classification system

A matrix of the United Nations explosives shipping classification system and examples of typical materials. Each classification consists of a Sub Class Number that indicates the type of hazard and a Compatibility group suffix describing which types of product may inhabit the same means of containment.[1]

Classes

[2]
Compatibility Group → Explosive Hazard ↓	A Primary explosive substance	B Article, primary explosive, without two protective features	C Propellant	D Article, Secondary Explosive or primary explosive with two protective features	E Article with Secondary Explosive, not self initiating, with propelling charge	F Article with Secondary Explosive, self initiating	G Pyrotechnics	H Explosive Containing White Phosphorus	J Explosive Containing a flammable liquid or gel	K Explosive Containing a toxic substance	L Presenting a special risk requiring isolation	N Extremely Insensitive	S Packed so hazard effects confined or so as not to hinder firefighting
1.1 Mass explosion Possible	1.1A Mercury fulminate, Lead azide Etc.	1.1B Blasting caps, ingitors	1.1C Rocket motors, smokeless powder	1.1D Detonating cord, explosive boosters, blackpowder, most secondary explosives	1.1E	1.1F	1.1G Flash powder, Bulk Salutes, very large fireworks		1.1J Liquid fuelled cruise missiles and torpedoes, incendiary bombs		1.1L
1.2 Projection but not mass explosion		1.2B Detonating fuzes	1.2C Rocket motors, propelling charges	1.2D Hand grenades, shaped charges	1.2E Rockets with bursting charges	1.2F	1.2G Large fireworks, practice grenades	1.2H White phosphorus grenades	1.2J	1.2K Chemical shells	1.2L Hypergolic fuelled rocket motors
1.3 Fire, minor blast			1.3C Smokeless powder, rocket motors			1.3F Fuzed hand grenades	1.3G Display Fireworks, smoke grenades, flares	1.3H	1.3J	1.3K	1.3L Hypergolic fuelled rocket motors
1.4 Minor explosion hazard.		1.4B Blasting Caps	1.4C Model rocket motors	1.4D Det. Cord	1.4E	1.4F	1.4G Consumer Fireworks, Proximate Pyro						1.4S Proximate Pyro, Blasting Caps, Small Arms Ammunition
1.5 Very insensitive, mass explosion hazard				1.5D Blasting Agents
1.6 Extremely insensitive, no mass explosion hazard												1.6N

Explosive Hazard Division and Compatibility Group Combination Matrix [2]
Hazard Division	Compatibility Group
Hazard Division	A	B	C	D	E	F	G	H	J	K	L	N	S
1.1	1.1A	1.1B	1.1C	1.1D	1.1E	1.1F	1.1G		1.1J		1.1L
1.2		1.2B	1.2C	1.2D	1.2E	1.2F	1.2G	1.2H	1.2J	1.2K	1.2L
1.3			1.3C			1.3F	1.3G	1.3H	1.3J	1.3K	1.3L
1.4		1.4B	1.4C	1.4D	1.4E	1.4F	1.4G						1.4S
1.5				1.5D
1.6												1.6N

Compatibility Groups

Example of an explosives placard

In some cases it may be appropriate and safe to mix explosives when transporting or storing them, certain compatibility groups may be mixed with others and still remain safe.

Permitted Mixing of Compatibility Groups[3]
Compatibility Group	A	B	C	D	E	F	G	H	J	K	L	N	S
A	^a.
B		X											X^g.
C			X	X^c,d,	X^c.		X^f.					X^d.	X^g.
D			X^c,d,	X	X^c.		X^f.					X^d.	X^g.
E			X^c.	X^c.	X		X^f.					X^d.	X^g.
F						X							X^g.
G			X^f.	X^f.	X^f.		X						X^g.
H								X					X^g.
J									X				X^g.
K										X			X^g.
L											X^b.
N			X^d.	X^d.	X^d.							X	X^g.
S		X^g.	X^g.	X^g.	X^g.	X^g.	X^g.	X^g.	X^g.	X^g.		X^g.	X

X Denotes compatibility groups that can be mixed in transport.

Detonators/blasting caps, may not be packaged together with any other explosive.

a. Different explosives of compatibility group A should be packaged separately

b. Explosives of compatibility group L shall only be packed with an identical explosive.

c. Explosive articles of the compatibility group C, D, or E may be packed together, and the whole packaged shall be treated as belonging to compatibility group E.

d. Explosive articles of the compatibility group C and D may be packed together, and the whole packaged shall be treated as belonging to compatibility group D.

e. Explosive articles of the compatibility group C, D, E or N may be packed together, and the whole packaged shall be treated as belonging to compatibility group D.

f. Explosive belonging to the compatibility group G except for fireworks, may be packaged together with compatibility groups C, D, and E, provided they are not carried in the same compartment, carry box, or vehicle, and the whole packaged shall be treated as belonging to compatibility group E.

g. Explosive of compatibility group S, may be packaged together with explosives of any other group, except A or L, and the combined packaged may be treated as belonging to any of the compatibility groups most appropriate, except S.

References

INTERNATIONAL AMMUNITION TECHNICAL GUIDELINE (IATG) 01.50, UN explosive hazard classification system and codes, Second edition, 2015-02-01
"Federal Register :: Request Access". unblock.federalregister.gov. Retrieved 2023-10-05.
"Definitions, Classification and Packaging for Class 1". www.govinfo.gov. Retrieved 2023-10-05.

Links

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[1] INTERNATIONAL AMMUNITION TECHNICAL GUIDELINE (IATG) 01.50, UN explosive hazard classification system and codes, Second edition, 2015-02-01

[:0-2] "Federal Register :: Request Access". unblock.federalregister.gov. Retrieved 2023-10-05.

[3] "Definitions, Classification and Packaging for Class 1". www.govinfo.gov. Retrieved 2023-10-05.

Explosives shipping classification system

Classes

Compatibility Group →

Explosive Hazard

A

B

C

D

E

F

G

H

J

K

L

N

S

1.1

1.2

1.3

1.4

1.5

1.6

Compatibility Groups

See also

References

Links