Home / Standards / GB/T 20671.4-2006 GB/T 20671.4-2006 Active Classification system and test methods for nonmetallic gasket materials - Part 4: Standard test method for sealability of gasket materials 非金属垫片材料分类体系及试验方法 第4部分:垫片材料密封性试验方法 Standard Type GBT ICS 73.080;23.100.60 CCS Q61 Status 现行 Issue Date 2006-12-07 Implementation 2007-07-01 Responsible Dept 中国建筑材料联合会 Drafting Unit N/A