Classes

1 Explosive substances and articles
2 Gases
3 Flammable liquids
4.1 Flammable solids, self-reactive substances and solid desensitized explosives
4.2 Substances liable to spontaneous combustion
4.3 Substances which, in contact with water, emit flammable gases
5.1 Oxidizing substances
5.2 Organic peroxides
6.1 Toxic substances
6.2 Infectious substances
7 Radioactive material
8 Corrosive substances
9 Miscellaneous dangerous substances and articles