Home / Standards / GB/T 7987-2013 GB/T 7987-2013 Abolished Vitreous and porcelain enamels-Determination of resistance to therml shock 搪玻璃层耐温差急变性试验方法 Standard Type GBT ICS 71.120;25.220.50 CCS G94 Status 废止 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