This standard specifies technology and acceptance level for surface imperfection of ferromagnetic material weld (including heat-affected zone) with magnetic particle testing method.
Appendix A describes factors providing related basic technologies for higher or lower detection sensitivity.
Appendix B recommends indicated acceptance level, whose more information may be found in the products or the applicable standards.
Pursuant basic rules when using non-destructive testing specified in GB/T 5616 shall be applicable to this standard.
