ADR Classification: The 9 Classes of Dangerous Goods and Their Safe Transport

The transport of dangerous goods is a highly regulated activity within land services, requiring a deep understanding of regulations and formal compliance to carry out these transports correctly. The ADR Agreement, the regulation governing dangerous goods transport services, is the fundamental pillar for road transport, establishing a global classification system to ensure the safety of people and the environment.

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The 9 Classes of Dangerous Goods (ADR)

Each ADR class is identified by a number and a visual label indicating the primary risk. Understanding this classification is the first step towards safe and legal transport.

All goods are classified into 9 distinct groups, encompassing all goods that must be managed with maximum safety. The classification is:

1

Class 1: Explosives

Risk: Mass explosion, projection risk, or fire risk

Examples: Dynamite, fireworks, detonators, and ammunition

2

Class 2: Gases

Risk: Flammability, toxicity, or asphyxiation. Transported compressed, liquefied, or refrigerated

Examples: Propane, oxygen, butane, and carbon dioxide

3

Class 3: Flammable Liquids

Risk: Emit flammable vapours at relatively low temperatures

Examples: Petrol, alcohol, solvents, and paints

4

Class 4: Flammable Solids

Risk: Flammable solids, self-reactive substances, and desensitised solid explosives

Examples: Matches, coal, and alkali metals

5

Class 5: Oxidising Substances and Organic Peroxides

Risk: Oxidising substances that facilitate the combustion of other materials and organic peroxides

Examples: Hydrogen peroxide and nitrates

6

Class 6: Toxic and Infectious Substances

Risk: Toxic substances that can cause death or serious health damage and infectious substances

Examples: Pesticides, cyanide, laboratory samples with viruses

7

Class 7: Radioactive Materials

Risk: Emission of ionising radiation

Examples: Uranium, cobalt-60, and medical equipment

8

Class 8: Corrosive Substances

Risk: Cause severe damage to skin, living tissue, or corrode other materials

Examples: Sulphuric acid, hydrochloric acid, and caustic soda

9

Class 9: Miscellaneous Dangerous Substances and Articles

Risk: Present a hazard during transport not covered by the definitions of the other classes

Examples: Lithium batteries, substances transported at elevated temperatures, and environmentally hazardous substances

It's fundamental to understand this classification list. Each class also has its own operational and documentary requirements, which is why relying on a highly trusted transport provider like InstantFreight is the solution.

ADR Classification