Home / Standards / GB/T 9989.5-2015 GB/T 9989.5-2015 Active Vitreous and porcelain enamels—Determination of resistance to chemical corrosion—Part 5: Determination of resistance to chemical corrosion in closed systems 搪瓷耐化学侵蚀的测定 第5部分：在封闭系统中耐化学侵蚀的测定 Standard Type GBT ICS 25.220.50 CCS Y26 Status 现行 Issue Date 2015-10-09 Implementation 2016-05-01 Responsible Dept 中国轻工业联合会 Drafting Unit N/A