Nondestructive testing is the examination of an object or material in a manner which does not affect its future usefulness. Nondestructive tests are performed to detect internal or external imperfections, to determine structure, composition, or properties, or to measure geometric characteristics-without affecting the form, fit, or function of the test object or material.

The above definition describes what nearly every manufacturer must do at some point to assure that its products meet standards of reliability, durability and safety. This is precisely why NDT is such a rapidly growing field.

NDT offers employment opportunities in a broad variety of industrial fields that use the testing methods of radiography, ultrasonics, eddy current, liquid penetrant, magnetic particle, leak testing, acoustic emission, visual examination, and certain other specialized methods. A brief description of some NDT procedures and their applications is provided to show you the diversity of career opportunities available.