DIN EN 12543-4:1999-12 Non-destructive testing - Characteristics of focal spots in industrial X-ray systems for use in non-destructive testing - Part 4: Edge method; German version EN 12543-4:1999
1999DIN EN 12543-4:1999-12 Non-destructive testing - Characteristics of focal spots in industrial X-ray systems for use in non-destructive testing - Part 4: Edge method; German version EN 12543-4:1999
1999DIN EN 12543-4:1999 Non-destructive testing - Characteristics of focal spots in industrial X-ray systems for use in non-destructive testing - Part 4: Edge method; German version EN 12543-4:1999