DIN EN ISO 11699-2:2012 非破坏性试验.工业射线胶片.第2部分:胶片参考值处理控制 (ISO 11699-2-1998).德文版 EN ISO 11699-2-2011
Non-destructive testing - Industrial radiographic films - Part 2: Control of film processing by means of reference values (ISO 11699-2:1998); German version EN ISO 11699-2:2011