Home / Standards / GB/T 13930-2010 GB/T 13930-2010 Abolished Methods for the measurement of volume flow of gas of water-ring vacuum pumps and compressors 水环真空泵和水环压缩机 气量测定方法 Standard Type GBT ICS 23.080 CCS J71 Status 废止 Issue Date 2010-09-26 Implementation 2011-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A