Home / Standards / GB/T 35138-2017 GB/T 35138-2017 Active Measurement of fluid flow in closed conduits—Ultrasonic transit-time meters for liquid 封闭管道中流体流量的测量 渡越时间法液体超声流量计 Standard Type GBT ICS 17.120.10 CCS N12 Status 现行 Issue Date 2017-12-29 Implementation 2018-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A