Division 3.2: Flashpoint below -18°C and above, but less than 23°C(73°F)
Division 3.3: Flashpoint 23°C and up to 61°C(141°F)
Hazard Class 4: Flammable solids, spontaneously combustible materials, and materials that are dangerous when wet
Division 4.1: Flammable solids
Division 4.2: Spontaneously combustible materials
Division 4.3: Materials that are dangerous when wet
Hazard Class 5: Oxidizers and organic peroxides
Division 5.1: Oxidizers
Division 5.2: Organic peroxides
Hazard Class 6: Poisons and etiologic materials
Division 6.1: Poisonous materials
Division 6.2: Etiologic(infectious) materials
Hazard Class 7: Radioactive material
Any material, or combination of materials, that spontaneously gives off ionizing radiation. It has a specific activity greater than 0.002 microcuries per gram.
Hazard Class 8: Corrosives
A material, liquid or solid, that causes visible destruction or irreversible alteration to human skin or a liquid that has a severe corrosion rate on steel or aluminum.
Hazard Class 9: Miscellaneous dangerous substances and articles