本欧洲标准规定了电影和数字射线照相的基本技术，其目的是使经济上获得令人满意和可重复的结果。这些技术是基于普遍公认的实践和基础理论的主题。 本欧洲标准适用于金属材料管道的射线检查，用于腐蚀点蚀，普遍腐蚀和侵蚀等工况引起的缺陷。除了常规的含义之外，本标准中使用的“管道”应理解为覆盖其他圆柱体，如管，管道，4568锅炉鼓和压力容器。 典型的焊接过程引起的焊缝缺陷的焊接检查不包括在内，但是焊接检查包括腐蚀/腐蚀类型的缺陷。 这些管道可能是4568绝缘的，也可以在内部或外部怀疑由于腐蚀或侵蚀造成的材料损失的情况下进行评估。 EN 16407的这一部分涵盖了墙体损失的检测和通过墙壁尺寸的切向检查技术，包括: a）将源头放在管道中心线上， b）通过管道半径将源偏移。 EN 16407的第2部分涵盖双壁射线照相术，并注意到双壁双重图像技术经常结合在一起

This document specifies fundamental techniques of film and digital radiography with the object of enabling satisfactory and repeatable results to be obtained economically. The techniques are based on generally recognized practice and fundamental theory of the subject. This document applies to the radiographic examination of steel pipes for service induced flaws such as corrosion pitting, generalized corrosion and erosion. Besides its conventional meaning, "pipe" as used in this document is understood to cover other cylindrical bodies such as tubes, penstocks, boiler drums and pressure vessels. Weld inspection for typical welding process induced flaws is not covered, but weld inspection is included for corrosion/erosion type flaws. The pipes can be insulated or not, and can be assessed where loss of material due, for example, to corrosion or erosion is suspected either internally or externally. This document covers the tangential inspection technique for detection and through-wall sizing of wall loss, including with the source: a) on the pipe centre line; and b) offset from pipe centre line by the pipe radius. ISO 20769-2 covers double wall radiography, and note that the double wall double image technique is often combined with tangential radiography with the source on the pipe centre line. This document applies to tangential radiographic inspection using industrial radiographic film techniques, computed radiography (CR) and digital detector arrays (DDA).