scope:

This standard encompasses the design and performance requirements for welded, brazed, flanged, threaded, press-fit, compression type or flared end couplings and fittings used to deliver fuel gas, such as, but not limited to, natural gas and liquefied petroleum gas (LP-gas).

Other types of couplings and fittings for fuel gas service may be certified if they meet the requirements and intent of this standard. Couplings and fittings for fuel gas service with an unusual design may be subjected to special tests to determine their suitability.

Purpose

This standard states testing and certification requirements for couplings and fittings for fuel gas service.

Testing and certification criteria may include, but are not limited to, performance requirements, marking requirements, examination of manufacturing facility(ies), audit of quality assurance procedures, and a surveillance program.