Magnetic Particle Testing (MT)

This course provides students with the history, theory, and practical knowledge to become a Magnetic Particle Testing Inspector, which will ultimately prepare them to sit for our certification examinations. This course will prepare the inspector to perform Level I and Level II Magnetic Particle testing responsibilities. Topics covered include both level I and Level II sections: Essential and ethical duties of the Magnetic Particle Testing Inspector, History and Present State of Magnetic Particle Testing, Physics of Magnetism, Equipment and Materials, Testing Practices, Process Control, and Interpretation of Indications. Topics that will also be covered, in Level II only, will be defect-ology, Codes (specifications, standards, and procedures) as they apply to Magnetic Particle Testing, and interpretation of results.


Course Objectives

The objective of this course is to give a foundation in the history of Magnetic Particle testing, wave propagation, attenuation, mode conversion, piezoelectric transducers, transducer types, couplant, and Pulser-Receiver. A understanding of normal beam inspection, angle beams and, spread spectrum. To perform calibration methods and DAC curves. Finally, the application of flaw detection and inspection of welded joints will be learned and demonstrated.

• To become familiar with Magnetism and its properties.

• To analyze and understand the Hysteresis Loop and Permeability.

• To understand measuring magnetization fields and its effects.

• To learn the difference in equipment and their uses.

• To become familiar with different magnetic particle testing practices.

• To determine visible and fluorescent indications.


Course Structure

This course is designed to provide a hybrid experience, including classroom and hands-on training. This class will be divided in the following way:

80% Classroom Training

• Theory of Magnetic Particle Testing

• Familiarity of magnetization and testing practices

• Code and procedure clinics

20% Field Hands-On Training

• Calibration and Equipment

• Familiarity with testing pipes and plates

• Field training based on job site location at time of class


Course Outline



• Basic Concepts

• History of Magnetic Particle Testing


• Magnetism

• Magnetic Properties

• Demagnetization

• Magnetic Fields

Equipment and Materials

• Portable Equipment

• Stationary Equipment

• Magnetic Particles

• Suspension Liquids

Testing Practices

• Dry Particles

• Wet Suspension

• Field Direction and Intensity

• L/D Ratio

Process Control

• Particle Concentration

• Eye Considerations

• Suspension Contamination

• Lighting


• Fluorescent, Wet Indications

• Visible, Dry Indications

Essential and Ethical Duties of the Inspector

• Duties and Responsibilities

• Notification of Discrepancies

• Inspection Reports


Textbook and Course Material

• Magnetic Particle Testing Classroom Training Book (ASNT)

• American Petroleum Institute (API) 1104 Piping Welding Code

• American Welding Society (AWS) D1.1 Structural Steel Welding Code


 Our philosophy at NDE Institute is based on our belief that the strongest inspectors are those who are trained with a focus on ethics and essential responsibilities.

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