Standard for Nondestructive Testing Personnel Qualification
ISO 9712 was published in 1992 as an international
standard that would be mutually recognized by participating
nations. This document is similar to SNT-TC-1A in that personnel
qualifications are based on education, training, experience
and qualification examinations.
ISO 9712 uses the Level I, II and III qualification
designations. A key issue is that employer-based certification
is not acceptable. NDT personnel certification must be obtained
from third party “Nationally Recognized Certification
Body”. Additionally, ISO 9712 specifies significantly
more training time than SNT-TC-1A specifically in Liquid Penetrant
Testing , Magnetic Particle Testing, Radiographic Testing and
Ultrasonic Testing methods.
Unfortunately, some countries do not recognize
each other’s ISO 9712 programs particularly where practical
examinations are performed differently for qualification.
Various national programs exist such as the Canadian
General Standards Board CAN/CGSB - 48.9712 - in Canada, and Personnel
Certification in Nondestructive Testing (PCN) administered by the
British Institute for Nondestructive Testing (BINDT) in the UK.
The American Society for Nondestructive Testing
developed the ACCP (ASNT Central Certification Program) to satisfy
ISO 9712 in the United States.