Home / Standards / GB/T 45764-2025 GB/T 45764-2025 Active Fine ceramics—Determination of photocatalytic activity of surfaces in an aqueous medium—Degradation of methylene blue 精细陶瓷 水介质中光催化剂表面活性的测定 亚甲基蓝降解法 Standard Type GBT ICS 81.060.30 CCS Q30 Status 现行 Issue Date 2025-06-30 Implementation 2026-01-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A