ICS25.140.10 J48 团 体 标 准 T/ZGWJHXH-42-2020 环室取压的焊接孔板流量计安全技术 SafetyTechnologyforWeldingOrificeFlowmeterwithWallPressure Tapping 报批稿 中国五金交电化工商业协会发布2020-11-27发布 2020-12-26实施 全国团体标准信息平台 T/ZGWJHXH-42-2020 全国团体标准信息平台 T/ZGWJHXH-42-2020 I目次 前言..................................................................................................................................................II 引言................................................................................................................................................III 1范围..............................................................................................................................................1 2规范性引用文件..........................................................................................................................1 3术语和定义..................................................................................................................................2 4符号..............................................................................................................................................3 5基本结构与代号..........................................................................................................................3 5.1基本结构..........................................................................................................................3 5.2产品型式代号..................................................................................................................6 6技术要求......................................................................................................................................7 6.1一般要求..........................................................................................................................7 6.2材料..................................................................................................................................7 6.3设计..................................................................................................................................8 6.4制造要求..........................................................................................................................8 7检验与试验....................................................................................................................................9 7.1外观检查..........................................................................................................................9 7.2材料验证复验................................................................................................................10 7.3尺寸测量........................................................................................................................10 7.4测量管壁厚测量............................................................................................................10 7.5无损检测........................................................................................................................10 7.6产品焊接接头力学性能试验........................................................................................11 7.7金相检验........................................................................................................................11 7.8水压试验........................................................................................................................11 8检验规则....................................................................................................................................12 8.1逐只检验........................................................................................................................12 8.2检验评定要求................................................................................................................12 8.3制造监督检验................................................................................................................12 9出厂文件....................................................................................................................................13 9.1出厂资料..............................