Home / Standards / GB/T 1693-2007 GB/T 1693-2007 Active Rubber,vulcanized - Determination of dielectric constant and dielectric loss tangent 硫化橡胶 介电常数和介质损耗角正切值的测定方法 Standard Type GBT ICS 83.060 CCS G40 Status 现行 Issue Date 2007-05-14 Implementation 2007-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A