scope:

This document specifies the characteristics of outlet connections for gas cylinder valves for compressed breathable air gas cylinders. It states the fundamental requirements for both the connection and its components and includes basic dimensions. Included in this document are the following connections: - Yoke type outlet connection for SCUBA use up to a maximum cylinder working pressure of 232 bar; - Threaded type outlet connections up to a maximum cylinder working pressure of 232 bar and 300 bar; - Threaded type valve outlet connection for SCUBA use up to a maximum cylinder working pressure of 232 bar including adaptor for users to convert into a yoke type outlet. Annex A gives the outlet connection type test procedures. Requirements for cylinder valves (see ISO 10297) are not covered by this International Standard.