Non-destructive testing of steel forgings - Part 3: Ultrasonic testing of ferritic or martensitic steel forgings; German version EN 10228-3:2016— 26 стр.
Non-destructive testing of steel forgings - Part 4: Ultrasonic testing of austenitic and austenitic-ferritic stainless steel forgings; German version EN 10228-4:2016— 26 стр.
Non-destructive testing of steel forgings - Part 4: Ultrasonic testing of austenitic and austenitic-ferritic stainless steel forgings; German version EN 10228-4:1999— 15 стр.
Non-destructive testing - Acoustic emission - Equipment characterisation - Part 2: Verification of operating characteristic; German version EN 13477-2:2010— 31 стр.