Home / Standards / GB/T 25753.3-2011 GB/T 25753.3-2011 Abolished Vacuum technology - Roots vacuum pump - Measurement of performance characteristics - Part 3: Measurement of overflow valve differential pressure 真空技术 罗茨真空泵性能测量方法 第3部分：溢流阀压差的测量 Standard Type GBT ICS 23.160 CCS J78 Status 废止 Issue Date 2011-11-21 Implementation 2012-03-01 Responsible Dept 中国机械工业联合会 Drafting Unit 中国机械工业联合会