Home / Standards / GB/T 20974-2014 GB/T 20974-2014 Active Rigid phenolic foam for thermal insulation(PF) 绝热用硬质酚醛泡沫制品(PF) Standard Type GBT ICS 91.120.10 CCS Q25 Status 现行 Issue Date 2014-06-24 Implementation 2015-02-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A