FD A09-203-1999
无损检验.采用X射线和γ射线法对混凝土、钢筋混凝土、预应力混凝土材料作射线照相检查.带说明的射线照片范例
Non destructive testing - Radiographic examination of concrete, reinforced concrete, prestressed concrete materials by X- and gamma rays - Examples of radiographs with their interpretation.