A petroleum liquid has a flash point of 85°F. This is a grade __________.
Official USCG Answer & Rule Citation
Correct Answer: Option C — D combustible liquid
Adiponitrile is a hazardous chemical requiring controlled vapor management. Under 46 CFR Subchapter D/I regulations, specific chemical compatibility and carriage requirements dictate the use of pressure-vacuum (P-V) relief valves for safe venting.
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