3ISO 10297:2006 Transportablc gas cylinders-Cylinder valves-Specification and type testing[S].
4ISO 22435:2007 Gas cylinders-Cylinder valves with integrated pressure regulators-Specification and type testing[S].
5BS EN 12094-4:2004 Fixed firefighting systems-Components for gas extinguishing systems-Part 4:Requirements and test methods for container valve assemblies and their actuators[S].