Nondestructive testing or NDT is a range of analysis techniques employed in industrial and scientific operations to examine--without damage or significant tampering or permanent alteration--the properties of particular materials, components, or systems for purposes of troubleshooting, product evaluation, and research. It is typically used in the areas of forensic engineering, mechanical engineering, electrical engineering, systems engineering, aeronautical engineering, medicine, and art.
NDT techniques or methods draw advantages on the use of electromagnetic radiation, sound, as well as the inherent properties of materials to achieve less costly, less time-consuming, and non-altering materials inspection. Commonly used methods in nondestructive testing include magnetic particle inspection, liquid penetrant testing, various forms ultrasonic testing, radiographic testing, remote visual inspection or RVI, acoustic emission testing, ellipsometry, scanning electron microscopy, and eddy current testing.
This category lists sites that offer various information and resources involving nondestructive testing. Sites of organizations, references, facilities, research, and sources for updates and new information are some of the links included.