ASNT ET Level III – Refresher Course (Online)

The ASNT Electromagnetic Testing (ET) Level III Refresher Course by NDTWorldwide® is designed for experienced Electromagnetic Testing Level II and Level III professionals who are preparing to renew or revalidate their ASNT ET Level III certification. The course focuses on refreshing core technical knowledge and reinforcing Level III responsibilities in a clear, structured,and exam-focused manner.

This refresher program provides a targeted review of key Electromagnetic Testing topics, including eddy current testing principles and theory, equipment and materials, testing techniques and calibration concepts, and interpretation and evaluation of signals. Special emphasis is placed on advanced ET applications such as Remote Field Testing (RFT) and Alternating Current Field Measurement (ACFM), including their principles, equipment, signal behavior, and practical inspection considerations.

The course also helps participants remain familiar with applicable ET codes, practices, procedures, and evaluation methods required for Level III responsibilities. Through focused revision and practical understanding, candidates strengthen their confidence, technical judgment, and exam readiness, ensuring continued performance as competent and responsible ASNT ET Level III professionals.

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Training Objective

ASNT ET Level III – Refresher Course (Online)

Electromagnetic Testing

Understand the basic principles and theory of electromagnetic and eddy current testing.
Learn how electromagnetic fields interact with conductive materials.
Understand the use of electromagnetic testing for detecting surface and near-surface discontinuities.
Know when electromagnetic testing is the appropriate inspection method to use.

Remote Field Testing (RFT)

Understand the principles and theory of remote field testing.
Learn how RFT signals are generated, transmitted, and received in ferromagnetic materials.
Understand common RFT practices and applicable codes used for inspection.
Apply RFT knowledge to evaluate wall loss and defects in tubular components.

Alternating Current Field Measurement (ACFM) Techniques

Understand the principles and theory of alternating current field measurement testing.
Learn the equipment and materials used in ACFM inspections.
Understand how ACFM signals are interpreted and evaluated.
Learn basic procedure requirements for performing ACFM testing.

Who Should Attend

This ASNT ET Level III – Refresher Course is ideal for professionals seeking certification and technical advancement:

Aspiring ASNT ET Level III candidates
NDT professionals – Managers, Engineers, Supervisors, Inspectors, Technicians
QA/QC & Welding professionals
Metallurgists, Mechanical & Production Engineers
Asset Integrity & RBI Inspectors

Note: No prerequisites to attend the course.
ASNT exam eligibility requires minimum education and experience, as per ASNT published guidelines.
A focused refresher for professionals aiming at ASNT ET Level III success.