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Standard for Fire and Explosion Prevention During Cleaning and Purging of Flammable Gas Piping Systems

This standard provides minimum safety requirements for the cleaning and purging procedures of flammable gas piping systems, including cleaning new or existing piping systems, purging piping systems into service, and purging piping systems out of service.

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NFPA members and public sector officials may submit a question on an NFPA code or standard. Responses are provided by NFPA Technical Staff on an informal basis.

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