Home / Standards / GB/T 40344.1-2021 GB/T 40344.1-2021 Active Vacuum technology—Standard methods for measuring vacuum-pump performance—Part 1:General description 真空技术 真空泵性能测量标准方法 第1部分:总体要求 Standard Type GBT ICS 23.160 CCS J78 Status 现行 Issue Date 2021-08-20 Implementation 2022-03-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A