DOT Hazard Class 4 is for flammable solids such as magnesium metal.
Division 4.2 is spontaneously combustible material.
It is the hazard group for spontaneously combustible materials.
DOT Class 1 is for explosives and has several Divisions.
DOT Hazard Class 4 has three Divisions. They are:
DOT Division 2.2 is for nonflammable compressed gases.
Hazard class 4 is Flammable Solids.
Flammable Solid
DOT division 4.1 is for flammable solids.
DOT class 8 are corrosive.
Class 4 Division 1 (more properly called Division 4.1) is for flammable solids.
Class 4 division 1 (more properly called Division 4.1) is for flammable solids.
Division 4.2 is spontaneously combustible material.
Explosive materials are in DOT hazard class 1.
Flammable solids are DOT Class 4.1 .
Corrosive materials are in Class 8.DOT Hazard Class 8 for corrosives.
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