ADR Hazard Signs

There are 9 classes of hazardous goods as described in ADR.  These have varying levels of danger so are placed into different packing groups and transport categories (see the How Dangerous section).

The classes describe the particular hazard of a substance.  Some have subcategories too.

ADR Class 1 Fifth Wheel Training

ADR Class 1 Fifth Wheel Training

Class 1 Explosives

ADR Class 2 1 Fifth Wheel Training

ADR Class 2 1 Fifth Wheel Training

Class 2.1 Flammable Gases

ADR Class 2 2 Fifth Wheel Training

ADR Class 2 2 Fifth Wheel Training

Class 2.2 Non-flammable non-toxic gases

ADR Class 2 3 Fifth Wheel Training

ADR Class 2 3 Fifth Wheel Training

Class 2.3 Toxic gas

ADR Class 3 Fifth Wheel Training

ADR Class 3 Fifth Wheel Training

Class 3 Flammable Liquids

ADR Class 4 1 Fifth Wheel Training

ADR Class 4 1 Fifth Wheel Training

Class 4.1 Flammable Solids sensitive to heat

ADR Class 4 2 Fifth Wheel Training

ADR Class 4 2 Fifth Wheel Training

Class 4.2 Solids that react with oxygen

ADR Class 4 3 Fifth Wheel Training

ADR Class 4 3 Fifth Wheel Training

Class 4.3 Solids that react with water

ADR Class 5 1 Fifth Wheel Training

ADR Class 5 1 Fifth Wheel Training

Class 5.1 Oxidisers

ADR Class 5 2 Fifth Wheel Training

ADR Class 5 2 Fifth Wheel Training

Class 5.2 Organic Peroxides

ADR Class 6 1 Fifth Wheel Training

ADR Class 6 1 Fifth Wheel Training

Class 6.1 Toxic substances

ADR Class 6 2 Fifth Wheel Training

ADR Class 6 2 Fifth Wheel Training

Class 6.2 Infectious substances

ADR Class 7 Fifth Wheel Training

ADR Class 7 Fifth Wheel Training

Class 7 Radioactive substances

ADR Class 8 Fifth Wheel Training

ADR Class 8 Fifth Wheel Training

Class 8 Corrosive substances

ADR Class 9 Fifth Wheel Training

ADR Class 9 Fifth Wheel Training

Class 9 Miscellaneous substances and articles

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