ASNT Magnetic Particle Testing Level III course

Preparing for the ASNT NDT Level III Magnetic Particle Testing (MT) method exam? This course takes you through the MT body of knowledge a Level III is expected to master. It covers the physics of magnetism, how indications are evaluated, and how to write and approve procedures.

A Level III does more than perform inspections. They set techniques, interpret codes and standards, and decide whether an indication is relevant. Each lesson is built around that kind of decision-making, so you learn why a technique is chosen as well as how it works.

The course is online, so you can study at your own pace with lifetime access. You can come back to the material as often as you need before exam day.

Built by cwindtexams, a team of welding and NDT specialists who help inspectors earn their CWI and ASNT certifications.

What Will I Learn?

• Principles of magnetism, including flux density, permeability, hysteresis and leakage fields
• Circular and longitudinal magnetization, and when to use each
• Magnetizing currents: AC, DC, half-wave and full-wave rectified, and how each affects detection depth
• Equipment: yokes, prods, coils, head shots, central conductors and field indicators
• Dry versus wet particles, visible versus fluorescent, and UV-A and white light requirements
• How to calculate magnetizing current and check field strength
• Interpreting relevant, non-relevant and false indications
• Demagnetization methods and how to verify residual field
• Applying codes and standards, and writing MT procedures and techniques
• Process control, quality checks and safety

Target Audience

• ASNT NDT Level II technicians preparing for the Level III MT method exam
• Current Level III holders adding MT as a new method
• QA/QC inspectors and engineers who write or approve MT procedures
• Candidates who want a structured revision course before ASNT’s exam

Requirements / Instructions

• A working knowledge of NDT and some practical MT experience (Level II recommended)
• Check that you meet ASNT’s education and experience eligibility for Level III before booking your exam
• A computer, tablet or phone with an internet connection