Home / Standards / GB/T 30199-2013 GB/T 30199-2013 Active Vitreous and porcelain enamels—Determination of scratch resistance of enamel finishes 搪玻璃层抗划伤性能的测定 Standard Type GBT ICS 25.220.50 CCS G94 Status 现行 Issue Date 2013-12-31 Implementation 2014-10-01 Responsible Dept 中国石油和化学工业联合会 Drafting Unit N/A