Home / Standards / GB/T 17215.921-2012 GB/T 17215.921-2012 Active Electricity metering equipment - Dependability - Part 21: Collection of meter dependability data from the field 电测量设备 可信性 第21部分:现场仪表可信性数据收集 Standard Type GBT ICS 17.220.20 CCS N22 Status 现行 Issue Date 2012-12-31 Implementation 2013-06-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A