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NDT Certifications & Other Testing Services

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NDT Certifications & Other Testing Services 2019-07-16T13:08:50+00:00

Domson offers many Non-Destructive Testing Services & NDT certifications in Ontario, as well as Magnetic Flux Testing (MFL), read more about these services below.

Hardness Testing

Hardness Testing is performed in the field with a small hand-held device and is used to gauge the strength of the metal. This is useful when determining the correct welding electrode to use during structural repair.

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Magnetic Flux Leakage Testing & NDT in OntarioMagnetic Flux Leakage (MFL)

is used to find areas of metal loss due to corrosion or erosion. It is most common in inspection of pipelines, tank floors and heat exchanger tubes.

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Vacuum Box Testing

is used to test the integrity of the seal between two plates, usually on a lap weld joint. A bubble solution is first applied to a clean, bare weld surface. The vacuum box is then placed over the joint and the compressor turned on until the gauge indicates a vacuum.

Any tiny holes or cracks that penetrate through the joint will cause air to be drawn up from the opposite surface, through the solution, and will form bubbles.

Vacuum box testing is commonly used in tank inspections for roof and floor repairs. Special box shapes can be made to test corners and curved surfaces.

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Coating thickness testing

refers to a special gauge used to measure dry paint thickness. A coating thickness gauge provides information on the expected life of the substrate, the product’s fitness for purpose, its appearance, while also ensuring compliance with a host of international codes and standards.