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Classification & labelling

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Transport of dangerous goods

Transport des produits dangereux

Index of the hazard classes and associated pictograms

Dangerous substances and articles are listed by the European Agreement concerning the International Carriage of Dangerous Goods by Road (ADR) [1] and classified in 13 classes.
For carriage, diamond-shaped marks (see below) are displayed on the outer packaging.
See more information about the ADR on the UNECE (United Nations Economic Commission for Europe) Web site.

Class 1 – Explosive substances and articles

matières et objets explosibles 1 matières et objets explosibles 1.4 matières et objets explosibles 1.5 matières et objets explosibles 1.6
No 1
No 1.4
No 1.5
No 1.6

Classe 2 – Gases

gaz 2.1 noir gaz 2.1 blanc gaz 2.2 noir gaz 2.2 blanc gaz 2.3
No 2.1
(flammable gases)
No 2.2
(non-flammable, non-toxic gases)
No 2.3
(toxic gases)

Class 3 – Flammable liquids

liquides inflammables 3 noir liquides inflammables 3 blanc
No 3

Class 4.1 – Flammable solids, self-reactive substances and solid desensitized explosives

matières solides 4.1
No 4.1

Class 4.2 – Substances liable to spontaneous combustion

matières inflammables 4.2
No 4.2

Classe 4.3 – Substances which, in contact with water, emit flammable gases

matières 4.3 noir matières 4.3 blanc
No 4.3

Classe 5.1 – Oxidizing substances

matières comburantes 5.1
No 5.1

Class 5.2 – Organic peroxides

No 5.2

Class 6.1 – Toxic substances

matières toxiques 6.1
No 6.1

Class 6.2 – Infectious substances

matières infectieuses 6.2
No 6.2

Class 7 – Radioactive material

matières radioactives 7A matières radioactives 7B matières radioactives 7C matières radioactives 7E
No 7A
No 7B
No 7C
No 7E

Class 8 – Corrosive substances

matières corrosives 8
No 8

Class 9 – Miscellaneous dangerous substances and articles

matières et objets dangereux 9
No 9

Where to find these pictograms ?

These pictograms are available for download in various formats on the United Nations Economic Commission for Europe Web site.

[1] From the French abbreviation Accord européen relatif au transport international des marchandises Dangereuses par Route.