Home / Standards / GB/T 8484-2020 GB/T 8484-2020 Active Test method for thermal insulating performance for building exterior doors and windows 建筑外门窗保温性能检测方法 Standard Type GBT ICS 91.060.50 CCS P32 Status 现行 Issue Date 2020-04-28 Implementation 2021-03-01 Responsible Dept 住房城乡建设部 Drafting Unit N/A