NDT Certifications & Other Testing Services

Our NDT Inspection Methodologies are Endless

IIA offers many Non-Destructive Testing Services & NDT certifications, 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.

Magnetic Flux Leakage (MFL)

Magnetic flux leakage 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.

Vacuum Box Testing

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.

Coating thickness testing

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.


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IIA Brochure - WHO WE ARE In 2015, the founders of Industrial Inspection & Analysis, Inc.® (IIA) began with a vision to build a best-in-class, industrial inspection company with… Read More
NDE BROCHURE - Today’s non-destructive tools and technologies allow us to inspect items inside a and out — without damaging the item’s ability to function. From the earliest stages… Read More
Outage Summary Sheet - PDI-QUALIFIED & EPRI-ENDORSED OUTAGE EXPERTS USING CUTTING-EDGE TECHNOLOGY TO MEET COMPLIANCE REQUIREMENTS You can count on IIA’s team of experts to ensure the continued reliability and… Read More