References
- BS 5289:1976: ‘Code of practice; visual inspection of fusion welded joints’ ,
- 1980 . ‘Welding inspection’ . AWS ,
- DIN 8563: ‘Sicherung der Gute von schweissarbeiten’ , Teil 3 Anforderungen, Bewertungsgruppen
- 1986 . ISO/DIS 5817: ‘Welded joints in steel materials — geometrical imperfections - acceptance levels’ , 12 ( 30 )
- 1984 . ‘Welding Handbook, Vol 5’, , 7th edition. , AWS .