According to the Chemical Data Guide, the flash point for the grade B flammable liquid piperylene is __________.
Official USCG Answer & Rule Citation
Correct Answer: Option B — -20°F
Piperylene, classified as a Grade B flammable liquid under 46 CFR Table 30.25-1, exhibits a low closed-cup flash point of -20°F according to the Chemical Data Guide, creating an extreme vapor ignition hazard requiring strict safety precautions.
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