、TICS75.200E20/29中华人民共和国国家标准GB/T××××—××××在役聚乙烯燃气管道检验与评价Inspectionandevaluationofin-servicepolyethylenegaspipeline（征求意见稿）××××-××-××发布××××-××-××实施国家市场监督管理总局国家标准化管理委员会发布IGB/T×××××—××××目次1范围.....................................................................................12规范性引用文件...........................................................................13术语、定义和缩略语.......................................................................14总则.....................................................................................25数据收集与资料审查.......................................................................36危害辨识与风险预评估.....................................................................67检验策略与检验方案制定...................................................................68检验实施.................................................................................79合于使用评价.............................................................................910压力（耐压）试验........................................................................911安全等级评定及问题处理..................................................................912确定检验周期...........................................................................12附录A（规范性）在役聚乙烯燃气管道年度检查............................................14附录B（规范性）在役聚乙烯燃气管道风险评估方法........................................18附录C（规范性）聚乙烯燃气管道位置与埋深检测方法......................................26附录D（规范性）气体泄漏检测方法及分级................................................30附录E（规范性）聚乙烯燃气管道热熔接头相控阵超声检测方法..............................33附录F（规范性）聚乙烯燃气管道剩余寿命预测方法........................................38附录G（资料性）热熔接头相控阵检测特征图谱............................................43GB/T×××××—...

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