DIN EN ISO 11699-1:2012
非破坏性试验.工业射线照相胶片.第1部分:工业射线照相胶片类别(ISO 11699-1-2008).德文版 EN ISO 11699-1-2011
Non-destructive testing - Industrial radiographic films - Part 1: Classification of film systems for industrial radiography (ISO 11699-1:2008); German version EN ISO 11699-1:2011