This specification covers the constructional, dimensional, and functional requirements for cylinder screw-down shut-off valves for use with portable liquefied petroleum gas containers of water capacity not exceeding 500 kg.
NOTE
a) The standards referred to in the specification are listed in Appendix A.
"b) Requirements that must be specified by the purchaser are listed in Appendix B.
c) Except under the standardization mark scheme, assessment of compliance with the requirements of 4.5 requires special agreement between supplier and purchaser.