division 4.1 is flammable solids
The DOT classification for Spontaneously Combustible material is Division 4.2
DOT Class 3 is for flammable liquids, but there is no subdivision of the class so there is no division 3 for this class.
DOT division 2.2 is for compressed nonflammable gasses.
Division 4.2 is spontaneously combustible material.
Division 4.2 is spontaneously combustible material.
DOT Class 2, Division 1 (more properly called Division 2.1) is for flammable gases.
There is no Class 3 Division 2; Class three has no subdivisions.
In the DOT system for classifying hazardous materials in transportation, Class 2, Division 1 (more properly called Division 2.1) is for flammable gases, usually compressed flammable gases.
The DOT (Department of Transportation) class for radioactive materials is Hazardous. The specific Hazard number will be determined by the exact name of the radioactive materials. Special permits and placarding are needed for vehicles carrying hazardous materials. The DOT class is categorized into 9 classes according to hazardous materials transportation. Class 7 is the general DOT class for radioactive materials.
Division 2.3 is for poisonous gases.
DOT placecards are used for the types and what class that a hazardous material is. They are put on trucks, bottles, and trains to show what hazardous material is inside.
4.1 - Flammable solid 4.2 - Spontaneously combustible material 4.3 - Hazardous when wet material