ASTTBC RFPT — Portable Fire Extinguishers (EX) · Question
What is the correct procedure for the remaining dry chemical powder when an extinguisher is opened for its 6-year internal examination?
According to NFPA 10 (2018), Section 7.8.3.4.1, dry chemical agent shall be permitted to be reused provided that a closed recovery system is used and the agent
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Question: What is the correct procedure for the remaining dry chemical powder when an extinguisher is opened for its 6-year internal examination?
Answer options:
- The powder must be discarded and replaced with new chemical to ensure reliability.
- The powder may be reused provided it is thoroughly checked for fluffiness and type.
- The powder must be discarded only if it shows signs of caking or moisture. ✅ The powder may be reused if it is passed through a recovery system that is closed to prevent moisture contamination.
Correct answer: The powder may be reused if it is passed through a recovery system that is closed to prevent moisture contamination.
Explanation: According to NFPA 10 (2018), Section 7.8.3.4.1, dry chemical agent shall be permitted to be reused provided that a closed recovery system is used and the agent is examined for proper type, contamination, and condition.
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