Home / Standards / GB/T 30191-2025 GB/T 30191-2025 Active Photocatalysis self-cleaning coatings for exterior wall 外墙光催化自洁涂覆材料 Standard Type GBT ICS 87.040 CCS G 51 Status 现行 Issue Date 2025-10-31 Implementation 2026-05-01 Responsible Dept 住房城乡建设部 Drafting Unit N/A