Home / Standards / GB/T 13969-2008 GB/T 13969-2008 Active Displacement type level instruments 浮筒式液位仪表 Standard Type GBT ICS 25.040.40 CCS N12 Status 现行 Issue Date 2008-07-28 Implementation 2009-02-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A