船用法兰非金属垫片 Nonmetal material gaskets for marine flange  ICS  47.020.30 CCS  U 55   中华人民共和国国家标准 GB/T 17727—2024 代替 GB/T 17727—2017 2024-08-2 3发布 2024-12-0 1实施     国家市场监督管理总局 国家标准化管理委员会 发 布目　　次 前言   ·····································································································   Ⅲ 1     范围   ··································································································   1 2     规范性引用文件   ······················································································   1 3     术语和定义   ···························································································   1 4     分类和标记   ···························································································   1      4.1     型式   ······························································································   1      4.2     基本参数   ·························································································   2      4.3     结构和尺寸   ······················································································   2      4.4     产品标记   ·························································································   9 5     要求   ·································································································   10      5.1     材料   ·····························································································   10      5.2     密封性   ··························································································   11      5.3     阻燃性能   ························································································   11      5.4     耐火性能   ························································································   11      5.5     外观   ·····························································································   11      5.6     极限偏差   ························································································   11      5.7     卫生   ·····························································································   12 6     试验方法   ····························································································   13      6.1     材料   ·····························································································   13      6.2     密封性   ··························································································   13      6.3     阻燃性能   ························································································   13      6.4     耐火性能   ························································································   13      6.5     外观   ·····························································································   13      6.6     极限偏差   ························································································   13      6.7     卫生   ·····························································································   13 7     检验规则   ····························································································   13      7.1     检验分类   ························································································   13      7.2     型式检验   ························································································   13      7.3     出厂检验   ························································································   14 8     标志、包装、运输和贮存   ···········································································   14      8.1     标志   ·····························································································   14      8.2     包装   ·····························································································   15      8.3     运输   ·····························································································   15      8.4     贮存   ······························