Home / Standards / GB/T 39704-2020 GB/T 39704-2020 Active Determination of effective thermal conductivity for vacuum insulation panels(VIP) 真空绝热板有效导热系数的测定 Standard Type GBT ICS 91.100.60 CCS Q25 Status 现行 Issue Date 2020-12-14 Implementation 2021-11-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A