ASNT NDT Level III Exam Preparation

Refresher Courses

If you're preparing for ASNT NDT Level III Exams, then ASNT Refresher Courses are designed for you.

The ASNT refresher courses are for those who are currently Level II or III and are looking to become an ASNT Level III or to maintain their Level III status. Our courses are structured around the same Body of Knowledge as the ASNT NDT Level III examinations. See complete course syllabi, a list of the many materials included with the courses, and a downloadable brochure and registration form.

Self-Study Materials

If Self Study is your path to certification whether it is NDT ASNT Level III or IRRSP then ASNT’s book store offers Study Guides, Questions and Answers Books, Training books and Handbooks that have the body of knowledge for you to be successful in seeking your credentials. Pick your NDT Method and the reference material best suited for you.


Acoustic Emission Testing (NDT Only)

Electromagnetic Testing (NDT Only)

Infrared and Thermal Testing (NDT Only)

Leak Testing (NDT Only)

Liquid Penetrant Testing (NDT OR ACCP)

Magnetic Flux Leakage (NDT Only)

Magnetic Particle Testing (NDT OR ACCP)

Radiographic Testing (NDT OR ACCP)

Ultrasonic Testing (NDT OR ACCP)

Visual Testing (NDT OR ACCP)