NF E29-500-1/A1*NF EN ISO 15848-1/A1:2017 工业阀门 逸散性排放的测量、测试和鉴定程序 第1部分:阀门型式试验的分类系统和鉴定程序 修正案 1
Industrial valves - Measurement, test and qualification procedures for fugitive emissions - Part 1 : classification system and qualification procedures for type testing of valves - Amendment 1