Home / Standards / GB/T 20312-2006 GB/T 20312-2006 Active Hygrothermal performance of building materials and products - Determination of hygroscopic sorption properties 建筑材料及制品的湿热性能 吸湿性能的测定 Standard Type GBT ICS 91.120.10 CCS Q25 Status 现行 Issue Date 2006-07-19 Implementation 2006-12-01 Responsible Dept 中国建筑材料联合会 Drafting Unit 中国建筑材料联合会