Division 4.2 is spontaneously combustible material.
DOT Hazard Class 4 is for flammable solids such as magnesium metal.
4.1 - Flammable solid 4.2 - Spontaneously combustible material 4.3 - Hazardous when wet material
Hazard Class 4 (flammable solids) consists of:Division 4.1 - flammable solidsDivision 4.2 - spontaneously combustible materialDivision 4.3 - dangerous when wet material
Class 4 Division 2, more often called Division 4.2, is for spontaneously combustible materials
Class 4: Flammable Solids, Spontaneously Combustible Materials, and Water-Reactive Substances
Class 4 Division 2, more often called Division 4.2, is for spontaneously combustible materials
Division 4.2 is spontaneously combustible material.
Poisonous gas is Division 2.3 in the DOT hazardous materials classification system.
Class 1
Class 8.
DOT class 8 are corrosive.