The application status of magnetic particle testing, penetrant testing, eddy current testing, radiographic testing and ultrasonic testing in weld crack inspector were introduced.

介绍了磁粉检测、渗透检测、涡流检测、射线检测和超声波检测技术在焊接裂纹检测中的应用状况。

Comparison test and practical experience clearly showed, the defect detectibility of the fluorescent magnetic particle testing is far higher than the black magnetic particle testing.

对比试验与实践经验表明，荧光磁粉检测比黑色磁粉检测有高得多的缺陷检出率。

Fluorescent magnetic particle testing is a NDT method that often used for testing trivial flaws on the surface of ferromagnetic materials in order to control the qualities of product.

荧光磁粉检测是一种常用的无损检测方法，用于检测钢制零件的表面及近表面的裂纹缺陷，长期以来一直被认为是表面裂纹检测最灵敏的方法之一。

Operating personnel should have testing qualification with level-I or level-I above, and magnetic particle testing report should be issued by the personnel with level-II or level-II above.

操作人员应具有I级或I级以上检测资格，磁粉检测报告应由具有II级II级以上检测资格者签发。

Magnetic particle testing steps and elements were described in detail, and testing traces of the magnetic particle characteristics, as well as defects in the post-processing methods were introduced.

针对球形储罐在制造、安装和使用过程中可能出现的表面缺陷，磁粉检测是重要的检测方法之一。