2018DIN EN ISO 19232-5:2018 Non-destructive testing - Image quality of radiographs - Part 5: Determination of the image unsharpness and basic spatial resolution value using duplex wire-type image quality indicators (ISO 19232-5:2018)
2013DIN EN ISO 19232-5:2013 Non-destructive testing - Image quality of radiographs - Part 5: Determination of the image unsharpness value using duplex wire-type image quality indicators (ISO 19232-5:2013); German version EN ISO 19232-5:2013
1996DIN EN 462-5:1996 Non-destructive testing – Image quality of radiographs DI Part 5: Image test body (double wire bar) Determination of image blur