ASTTBC RFPT — Portable Fire Extinguishers (EX) · Question
When recharging a dry chemical fire extinguisher, NFPA 10 requires the use of which of the following to ensure the integrity of the agent?
NFPA 10, Section 7.8.2.3 states that only standard industrial-grade nitrogen with a dew point of -60°F (-51.1°C) or lower shall be used to pressurize stored-pre
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Question: When recharging a dry chemical fire extinguisher, NFPA 10 requires the use of which of the following to ensure the integrity of the agent?
Answer options:
- Standard industrial compressed air ✅ Regulated Nitrogen from a cylinder with a moisture trap
- Oxygen to ensure better expulsion pressure
- Manual hand pumps only
Correct answer: Regulated Nitrogen from a cylinder with a moisture trap
Explanation: NFPA 10, Section 7.8.2.3 states that only standard industrial-grade nitrogen with a dew point of -60°F (-51.1°C) or lower shall be used to pressurize stored-pressure dry chemical extinguishers.
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