NF A89-521:2011
Non-destructive testing of welds - Ultrasonic testing - Acceptance levels.

Standard No.

NF A89-521:2011

Release Date

2011

Published By

Association Francaise de Normalisation

Latest

NF A89-521:2011

Replace

NF A89-521:1997 NF A89-521/A1:2002 NF A89-521/A2:2004

NF A89-521:2011 history

• 2011 NF A89-521:2011 Non-destructive testing of welds - Ultrasonic testing - Acceptance levels.
• 2004 NF A89-521/A2:2004 Non-destructive testing of welds - Ultrasonic testing of welded joints - Acceptance levels.
• 2002 NF A89-521/A1:2002 Non-destructive testing of welds - Ultrasonic testing of welded joints - Acceptance levels.
• 1997 NF A89-521:1997 Non destructive examination of welds. Ultrasonic examination of welded joints. Acceptance levels.