本标准规定了自动熔化极电弧焊钢管（以下简称钢管）纵向或螺旋焊缝的基于胶片的X射线照相检测要求，以检测缺陷。

This Standard specifies requirements for film-based radiographic X-ray testing of the longitudinal or helical weld seams of automatic fusion arc-welded steel tubes (hereafter referred to as steel tubes) for the detection of imperfections.