4.1 - Flammable solid
4.2 - Spontaneously combustible material
4.3 - Hazardous when wet material
DOT Division 2.2 is for nonflammable compressed gases.
DOT Hazard Class 4 is for flammable solids such as magnesium metal.
Hazard class 4 is Flammable Solids.
Flammable Solid
DOT division 4.1 is for flammable solids.
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.
Class 4 Division 2, more often called Division 4.2, is for spontaneously combustible materials
division 4.1 is flammable solids
Class 4 division 3 (more properly called Division 4.3) is a Dangerous When Wet Material.
Class 4 Division 2, more often called Division 4.2, is for spontaneously combustible materials