DOT Hazard Class 3 is "Flammable Liquid".
Flammable liquids
DOT class 8 are corrosive.
Methanol is a flammable liquid and falls in hazard class 3.
Flammable liquids are in Hazard Class 3
Explosives that have no explosive hazard are not explosives. Materials that have a fire hazard but no explosive hazard are Class 2 if they are gasses, class 3 if they are liquids, and class 4 if they are solids.
Corrosive materials are in Hazard Class 8.
Explosive materials are in DOT hazard class 1.
Hazard class 4 is Flammable Solids.
The DOT classification for Spontaneously Combustible material is Division 4.2
Corrosive materials are in Class 8.DOT Hazard Class 8 for corrosives.
3
DOT Hazard Class 4 is for flammable solids such as magnesium metal.
It is DOT class 8.