DIN EN 12543-3-1999 无损检测.无损检测用工业X射线系统焦点的特性.第2部分:狭缝照相机射线摄影法
Non-destructive testing - Characteristics of focal spots in industrial X-ray systems for use in non-destructive testing - Part 3: Slit camera radiographic method; German version EN 12543-3:1999