Non-destructive Testing (NDT), also known as non-destructive examination (NDE), refers to any testing or inspection method that does not permanently damage or destroy the equipment or material being tested. This is opposed to destructive testing, in which the part being tested is rendered inoperable, or destroyed, during the testing process.

NDT is an incredibly common and important practice in many industries, including oil & gas, petrochemicals, chemical processing, aerospace, and manufacturing. NDT is frequently used to find discontinuities, flaws, or corrosion in materials.

Conventional NDT is comprised of a number of different testing methods, most of which rely on either sound or electromagnetic waves to examine materials.

Sentinel Integrity Solutions offers a wide array of conventional NDT applications for turnaround and on-stream inspection activities, including ultrasonic testing (UT), liquid penetrant inspection (LPI), magnetic particle testing (MPT), positive material identification (PMI), and conventional radiography (RT).

Click any of the links below to learn more about specific NDT methods offered by Sentinel’s team of experts.


Ultrasonic Testing

Ultrasonic testing (UT) is a conventional NDT technique that can be used to obtain thickness measurements of materials and detect defects in welds. Ultrasonic testing works by transmitting ultrasonic pulse waves into a material in order to verify...

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Radiography

Radiography is a type of nondestructive examination technique that uses radiation (either x-rays or gamma rays) to inspect various types of equipment. It sees extensive use in industrial facilities. Radiography works by using a device to emit...

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Liquid Penetrant Testing

Liquid penetrant testing (LPT) is a nondestructive testing technique for detecting surface defects on both ferromagnetic and non-ferromagnetic materials. The technique works based on capillary action, which is the tendency of a liquid to rise, or...

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Magnetic Particle Testing

Magnetic particle testing (MPT) is a nondestructive examination (NDE) technique that is primarily used for detecting surface and slightly subsurface discontinuities in ferromagnetic materials. This method works by creating a magnetic field around...

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Positive Material Identification

Positive Material Identification (PMI) is the process of identifying and analyzing the chemical composition of various metal alloys. Being able to verify the correct metallurgical composition of materials is...

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