Home / Standards / GB/T 21699-2008 GB/T 21699-2008 Active Verification/Calibration method of rotating-element current meters in straight open tank 直线明槽中的转子式流速仪检定/校准方法 Standard Type GBT ICS 07.060 CCS N93 Status 现行 Issue Date 2008-04-09 Implementation 2008-07-01 Responsible Dept 水利部 Drafting Unit N/A