US Department of Transportation (DOT) Pipeline Hazardous Materials Safety

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The correct answer is A. Class 3. Recall that Class 3 hazardous materials are flammable and combustible liquids. All of these substances – gasoline, cleaning fluids, and fuel oils – are flammable liquids and may also be combustible. For more information, refer to § 173.12.

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Hint: The correct class contains flammable liquids that have flash points of not more than 60.5^o C (141^o F) or are any material, in a liquid phase, with a flash point at or above 37.8^o C (100^o F).

Correct! All of these materials belong to Class 3 – Flammable and Combustible Liquids.

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Knowledge Check 1 Which hazardous materials class includes such substances as gasoline, acetone, and fuel oils? Click on your answer, and then click on the SUBMIT button.
	A. Class 3	B. Class 8	C. Class 4	D. Class 5