Hazard Class 1: Explosives
1.1 mass explosion hazard
1.2 projectile hazard
1.3 minor blast/projectile/fire
1.4 minor blast
1.5 insensitive explosives
1.6 very insensitive explosives
Hazard Class 2: Compressed Gases
2.1 flammable gases
2.2 non flammable compressed
2.3 poisonous
Hazard Class 3: Flammable Liquids
Flammable (flash point below 141°)
Combustible (flash point 141°-200°)
Hazard Class 4: Flammable Solids
4.1 flammable solids
4.2 spontaneously combustible
4.3 dangerous when wet
Hazard Class 5: Oxidizers and Organic Peroxides
5.1 Oxidizer
5.2 Organic Peroxide
Hazard Class 6: Toxic Materials
6.1 Material that is poisonous
6.2 Infectious Agents
Hazard Class 7: Radioactive Material
Radioactive I
Radioactive II
Radioactive III
Hazard Class 8: Corrosive Material
Destruction of the human skin
Corrode steel at a rate of 0.25 inches per year
Hazard Class 9: Miscellaneous
A material that presents a hazard during shipment but does not meet the definition of the other classes