Home / Standards / GB/T 12968-1991 GB/T 12968-1991 Active Eddy current decay method formeasurement of resistivity and residual resistance ratio of pure metals 纯金属电阻率与剩余电阻比涡流衰减测量方法 Standard Type GBT ICS 77.040.20 CCS H21 Status 现行 Issue Date 1991-06-04 Implementation 1992-03-01 Responsible Dept 中国有色金属工业协会 Drafting Unit N/A