References
[1] ASNT Recommended Practice SNT-TC-1A 2006 Edition – Personnel Qualification and Certification
in NDT
[2] BSEN4179 2005 – Qualification and Approval of Personnel for NDT
[3] EN473 2000 – Non Destructive Testing – Qualification and Certification of NDT Personnel –
General Principles
[4] ISO 9712 2005 – Non Destructive Testing Qualification and Certification of Personnel