ICS 29. 035. 99 K 15 GB 中华人民共和国国家标准 GB/T1303.4—2009 代替GB/T1303.1-1998 电气用热固性树脂工业硬质层压板 第4部分:环氧树脂硬质层压板 Industrial rigid laminated sheets based on thermosetting resins for electrical purposes- Part 4 : Requirements for rigid laminated sheets based on epoxy resins (IEC 60893-3-2:2003,Insulating materials--Industrial rigid laminated sheets based on thermosetting resins for electrical purposes- Part 3:Specifications for individual materials- Sheet 2:Requirements for rigid laminated sheets based on epoxy resins, MOD) 2009-06-10发布 2009-12-01实施 中华人民共和国国家质量监督检验检疫总局 发布 中国国家标准化管理委员会 数码防伪