gbt 12605-2007 无损检测 金属管道熔化焊环向对接接头射线照相检测

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1、免费标准网(www.freebz.net)标准最全面中华人民共和国国家标准GB/T12605－2007代替GB/T12605－1990无损检测金属管道熔化焊环向对接接头射线照相检测Non-destructivetesting－Radiographictestingofcircumferentialfusion-weldedbuttjointsinmetallicpipesandtubes（征求意见稿）（本稿完成日期：2007.2）2007-××-××发布2007-××-××实施国家质量监督检验检疫总局发布免

2、费标准网(www.freebz.net)无需注册即可下载免费标准网(www.freebz.net)标准最全面GB/T12605－2007目次前言...............................................................................................................................................................III1范围...................

3、..........................................................................................................................................12规范性引用文件.............................................................................................................

4、............................13术语和定义.................................................................................................................................................14射线检测人员....................................................................

5、.........................................................................25辐射防护.....................................................................................................................................................26透照工艺......................

6、...............................................................................................................................26.1射线透照工艺分级.....................................................................................................................

7、.........26.2表面要求和射线检测时机..................................................................................................................26.3透照方式..............................................................................................................

8、................................26.4透照方式的选择..................................................................................................................................56.5100%透照时最少曝光次数..................