What is the minimum temperature required in order for steam driven pumps to be considered a source of vapor ignition?
Official USCG Answer & Rule Citation
Correct Answer: Option C — 500°F
USCG and international safety regulations designate 500°F (260°C) as the minimum surface temperature threshold capable of igniting petroleum vapors. Steam piping and equipment exceeding this limit present an unacceptable fire hazard in hazardous cargo areas.
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