Home / Standards / GB/T 9988-2025 GB/T 9988-2025 Active Test method for alkali resistance of porcelain enamels 搪瓷耐碱性能测试方法 Standard Type GBT ICS 25.220.50 CCS Y 26 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A