Gaseous fuels. Regulation pressure and/or measurement packages with a maximum operating pressure up to 5 bar. Part 1: Packages to built in, attach or place in enclosures with an equivalent nominal volume of flow up to 100 m3 (n)/h of natural gas.
气体燃料 最大工作压力高达5巴的调节压力和/或测量包 第1部分:内置、连接或放置在同等标称流量高达100 m3(n)/h天然气的外壳中的包装