Search Results

Close

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.

Choose Edition:

Select the Free Access Edition:

View

Current & Prior Editions

Choose Edition:

Select Edition

Next Edition

Technical Committee

Ask a Technical Question

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.

NFPA 56: News

View Purchase Options

Related Products