What is the Reid vapor pressure of a Grade A flammable liquid?
Official USCG Answer & Rule Citation
Correct Answer: Option A — 14 psia or more
Under 46 CFR definitions, Grade A flammable liquids are those petroleum products or hazardous materials having a Reid vapor pressure of 14 psia (96.5 kPa) or more at 100°F (37.8°C).
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