Home / Standards / GB/T 22476-2008 GB/T 22476-2008 Active Calculation and determination of steady-state U values(thermal transmittance) of multiple glazing 中空玻璃稳态U值(传热系数)的计算及测定 Standard Type GBT ICS 81.040 CCS Q33 Status 现行 Issue Date 2008-11-04 Implementation 2009-06-01 Responsible Dept 中国建筑材料联合会 Drafting Unit 中国建筑材料联合会