Home / Standards / GB/T 5275.6-2023 GB/T 5275.6-2023 Active Gas analysis—Preparation of calibration gas mixtures using dynamic methods—Part 6:Critical flow orifices 气体分析 动态法制备校准用混合气体 第6部分：临界流锐孔 Standard Type GBT ICS 71.100.20 CCS G86 Status 现行 Issue Date 2023-03-17 Implementation 2023-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A