Home / Standards / GB/T 28600-2012 GB/T 28600-2012 Active Rubber compounding ingredients - Silica, precipitated, hydrated -Determination of average pore diameter 橡胶配合剂 沉淀水合二氧化硅 平均孔径的测定 Standard Type GBT ICS 83.040.20 CCS G49 Status 现行 Issue Date 2012-06-29 Implementation 2012-12-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A