Home / Standards / GB/T 27970-2011 GB/T 27970-2011 Active Test method for weight loss of non-metallic gasket materials upon exposure to elevated temperatures 非金属垫片材料烧失量试验方法 Standard Type GBT ICS 23.100.60 CCS Q69 Status 现行 Issue Date 2011-12-30 Implementation 2012-10-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A