Who is responsible for interpreting NDT results?

Interpreting NDT results is a critical responsibility that requires a comprehensive understanding of the testing methods, materials, and potential defects. NDT Level II certified technicians and Level III certified technicians have the required knowledge, skills, and experience to analyze and interpret results accurately.

NDT Level II technicians are trained to perform specific NDT methods and carry out the evaluations, while NDT Level III technicians possess advanced knowledge and are responsible for overseeing and guiding NDT programs, including the interpretation of results. Their training includes understanding the principles of the techniques used, recognizing indications and artifacts, and understanding the implications of the results in relation to codes, specifications, and applications.

Other options, such as NDT Level I certified technicians, typically perform tests and document results under supervision but do not interpret these results independently. Additionally, any laboratory technician, unless specially trained in NDT procedures, may not have the qualifications to interpret NDT findings accurately. NDT trainees are still in the learning phase and do not have the requisite experience or expertise to make informed interpretations of test results. Thus, the responsibility for interpretation lies distinctly with NDT Level II or Level III certified technicians.