Nitrogen mustard is an example of which UN/DOT hazard division?

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Multiple Choice

Nitrogen mustard is an example of which UN/DOT hazard division?

Explanation:
The key idea is how hazmat divisions classify materials by the type of hazard they pose. Nitrogen mustard is a chemical agent that causes severe tissue damage (a toxic, blister-causing chemical). In the UN/DOT system, such toxic chemicals are placed in the toxic substances division. It isn’t a gas, so it isn’t categorized with flammable or toxic gases, and it isn’t an infectious substance, so it isn’t in the infectious substances division. For those reasons, nitrogen mustard belongs in the toxic substances category.

The key idea is how hazmat divisions classify materials by the type of hazard they pose. Nitrogen mustard is a chemical agent that causes severe tissue damage (a toxic, blister-causing chemical). In the UN/DOT system, such toxic chemicals are placed in the toxic substances division. It isn’t a gas, so it isn’t categorized with flammable or toxic gases, and it isn’t an infectious substance, so it isn’t in the infectious substances division. For those reasons, nitrogen mustard belongs in the toxic substances category.

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