Home / Standards / GB/T 18659-2023 GB/T 18659-2023 Active Measurement of fluid flow in closed conduits—Guidance for the use of electromagnetic flowmeters 封闭管道中流体流量的测量 电磁流量计使用指南 Standard Type GBT ICS 17.120.10 CCS N12 Status 现行 Issue Date 2023-08-06 Implementation 2024-03-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A