ISO 23551-4:2005/Amd 1:2010 煤气灯和气体燃烧用具的安全性和控制装置.详细要求.第4部分:自动切断阀用阀检验系统.修改件1:阀检验系统用应用导则
Safety and control devices for gas burners and gas-burning appliances - Particular requirements - Part 4: Valve-proving systems for automatic shut-off valves - Amendment 1: Application guidance for the valve-proving system