Standards

This document specifies the general requirements and tests for safety devices for fuel gases and oxygen or compressed air which do not incorporate a flame (flashback) arrestor used downstream of manifold, cylinder and/or pipeline outlet regulators, and upstream of blowpipes for welding, cutting and allied processes. This document does not specify the location of these devices in the gas system. This document is not applicable to safety devices which incorporate a flame arrestor, covered by ISO 5175-1.

This document recommends good practices for all elements of conformity assessment, including objects of conformity assessment, specified requirements, activities, bodies, systems, schemes and results. It is intended for use by individuals and bodies that wish to provide, promote or use impartial and reliable conformity assessment services. Providers of conformity assessment can include conformity assessment bodies, accreditation bodies, peer-assessment agreement groups, and organizations providing declarations of conformity. Individuals or organizations that promote or use conformity assessment can include, as appropriate, regulators, trade officials, and owners of conformity assessment systems and schemes.