DIN EN ISO 19232-4:2013-12 Non-destructive testing - Image quality of radiographs - Part 4: Experimental evaluation of image quality values and image quality tables (ISO 19232-4:2013); German version EN ISO 19232-4:2013
2013DIN EN ISO 19232-4:2013-12 Non-destructive testing - Image quality of radiographs - Part 4: Experimental evaluation of image quality values and image quality tables (ISO 19232-4:2013); German version EN ISO 19232-4:2013
2013DIN EN ISO 19232-4:2013 Non-destructive testing - Image quality of radiographs - Part 4: Experimental evaluation of image quality values and image quality tables (ISO 19232-4:2013); German version EN ISO 19232-4:2013
1994DIN EN 462-4:1994 Non-destructive testing - Image quality of radiographs - Part 4: Experimental evaluation of image quality values and image quality tables; German version EN 462-4:1994