NF A09-231-1*NF EN 12543-1:1999 Non-destructive testing. Characteristics of focal spots in industrial X-ray systems for use in non-destructive testing. Part 1 : scanning method
1999NF A09-231-1*NF EN 12543-1:1999 Non-destructive testing. Characteristics of focal spots in industrial X-ray systems for use in non-destructive testing. Part 1 : scanning method