A different NDT method, different defects?

That could be said if it is established what defects can best be found with what NDT method. But it can also mean that when using a different test method, its specific indication accuracy and characteristics must be used to adapt the acceptance criteria for the quality of the weld. This article describes how switching from x-ray and manual ultrasonic testing to fully automated, zonally focused ultrasonic testing – combined with “Time of Flight Diffraction” (AUT) – affects the acceptance criteria that are to be used.