JBT4730[1].2-2005承压设备无损检测第2部分射线检测

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1、中华人民共和国行业标准JB/T4730.2-2005代替JB4730一一1994部分承压设备无损检测第2部分:射线检测Nondestructivetestingofpressureequipments-Part2:Radiographictesting2005-07-26发布2005-11-01实施国家发展和m革委员会发布JB/T4730.2-2005目次前言·.........................................................................................

2、....................................................................221范围·.......................................................................................................................................................23勺‘规范性引用文件·..................................

3、.................................................................................................23伟J一般要求·...............................................................................................................................................234具体要求·..............

4、.................................................................................................................................25llJ承压设备熔化焊对接焊接接头射线检测质量分级·...........................................................................336承压设备管子及压力管道熔化焊环向对接焊接接头射线检测质量分级·......

5、..................................387射线检测报告·.......................................................................................................................................41附录A(资料性附录)工业射线胶片系统的特性指标·..................................................................

6、...42附录B(资料性附录)黑度计(光学密度计)定期校验方法·..........................................................43附录C(资料性附录)典型透照方式示意图·.....................................................................................44附录D(资料性附录)环向对接焊接接头透照次数确定方法·.............................................

7、.............47附录E(规范性附录)焦点尺寸计算方法·.........................................................................................54附录F(规范性附录)专用像质计的型式和规格·..............................................................................55附录G(规范性附录)搭接标记的摆放位置·........................

8、.............................................................56附录H(规范性附录)对比试块的型式和规格·...................