Magnetic Particle Inspection

Used for finding surface and slightly subsurface defects in ferromagnetic material, Magnetic Particle testing (MT) is a versatile inspection method used for both field and shop applications. Magnetic particle testing works by magnetizing the specimen using a magnet or by producing a magnetic field by inducing an electric current in the specimen. If the specimen has a discontinuity, the magnetic field or flux flowing through the specimen is interrupted and flux leakage occurs. Finely milled iron particles coated with a dye pigment are applied to the specimen. These are attracted to the flux leakage fields and cluster to form an indication directly over the discontinuity. The indication is visually detected using proper lighting conditions, which could be traditional lighting or black light.


Additional Services:

Ultrasonic Testing

Liquid/Dye Penetrant


Visual Inspection

Weld Procedure and Welder Performance Certification

Ground Penetrating Radar (GPR)

Elcometer 3312 Model SH Concrete Covermeter

Wireline (Borehole Geophysics)