According to the different risks, dangerous goods are divided into nine categories, some of which are divided into several items.
The first kind of explosives
1.1 items or substances that are dangerous in the event of an overall explosion;
1.2 items or substances that have the danger of ejection without the risk of a whole explosion;
1.3 articles or substances that have fire hazards, minor explosions and / or lesser ejection risks without the risk of a whole explosion;
1.4 items and substances that do not have significant risks;
1.5 substances with a low overall risk of explosion and extremely low sensitivity;
Any of 1.6 substances that have no integral explosion and are extremely sensitive.
Second gases
2.1 flammable gases
2.2 non flammable and non toxic gases;
2.3 toxic gases
Third flammable liquids
Fourth types of flammable solids, spontaneous combustion substances, and flammable gases released in water
4.1 flammable solids;
4.2 spontaneous combustion substances;
4.3 substances that release flammable gases when exposed to water.
Fifth oxidants and organic peroxides
5.1 oxidants;
5.2 organic peroxides.
Sixth types of toxic (toxic) substances and infectious substances
6.1 toxic substances;
6.2 infectious substances.
Seventh types of radioactive materials
Eighth types of corrosion products
Ninth types of miscellaneous dangerous articles