Division 2.3 is for poisonous gasses.
Division 2.3 is for poisonous gases.
DOT Class 2, Division 1 (more properly called Division 2.1) is for flammable gases.
Division 2.3 is for poisonous gases.
There is no Class 3 Division 2; Class three has no subdivisions.
DOT division 2.2 is for compressed nonflammable gasses.
DOT Class 2, Division 1 (more properly called Division 2.1) is for flammable gases.
Division 4.2 is spontaneously combustible material.
Materials NOT found in Class 2 would be any material that is not a gas.
"Non-flammable compressed gas" is the formal terminology. This class/division includes carbon dioxide (co2) cylinders, air tanks, and many industrial gasses described as "inert". Flammable gasses/aerosols, and toxic gasses/aerosols are also in class 2, but different divisions (2.1, and 2.3 respectively)
Division 4.2 is spontaneously combustible material.
liquefied gas
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.