What is the general purpose of the numbered divisions within some hazard classes, such as Division 1.1 versus 1.4 within Class 1 explosives?
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Correct answer to question 87 (Hazardous Materials): They further describe the specific type and severity of hazard within that broader class
Why
Within a broad class like explosives, the danger can vary a great deal, so divisions exist to describe more precisely how a given material behaves and how much of a hazard it actually poses.
Updated: November 2026