Home / Standards / GB/T 39524-2020 GB/T 39524-2020 Active Test method of weatherability for building windows and doors 建筑门窗耐候性能试验方法 Standard Type GBT ICS 91.060.50 CCS P32 Status 现行 Issue Date 2020-12-14 Implementation 2021-11-01 Responsible Dept 住房城乡建设部 Drafting Unit N/A