Gas installations pipework supplied at maximum operating pressure (MOP) up to and including 5 bar. Part 13: Technical criteria for periodic inspection of gas appliances connected to the installations pipework in service.
气体装置以最大工作压力(MOP)供应的管道工程 最大工作压力不超过5 bar 第13部分:与在用装置和管道连接的燃气器具定期检验技术标准