Home / Standards / GB/T 14070-1993 GB/T 14070-1993 Active Gas analysis--Preparation of calibration gas mixtures--Manometric method 气体分析 校准用混合气体的制备 压力法 Standard Type GBT ICS 17.220.20 CCS N50 Status 现行 Issue Date 1993-01-11 Implementation 1993-11-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A