Home / Standards / GB/T 35049-2018 GB/T 35049-2018 Active Vacuum technology—Leak testing method by quadrupole mass spectrometer 真空技术 四极质谱检漏方法 Standard Type GBT ICS 23.160 CCS J78 Status 现行 Issue Date 2018-05-14 Implementation 2018-12-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A