Home / Standards / GB/T 47104-2026 GB/T 47104-2026 Upcoming Thermal performance of buildings and building components—Physical quantities and definitions 建筑物和建筑构件的热性能 物理量和定义 Standard Type GBT ICS 91.120.10 CCS Q25 Status 即将实施 Issue Date 2026-01-28 Implementation 2026-08-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A