
Safety And Control Devices For Gas Burners And Gas-burning Appliances - Particular Requirements - Part 4: Valve-proving Systems For Automatic Shut-off Valves
出版:Nederlands Normalisatie Instituut

专家解读视频
Defines safety, constructional and performance requirements of valve-proving systems, hereafter referred to as VPS, intended for use with gas burners and gas-burning appliances. It also explains the test procedures for checking compliance with these requirements and provides information necessary for the purchaser and user.
ISO 23551-4:2005 - Identical