Also known as non-destructive inspection. Any technique that uses radiography, ultra-sonics, dye-penetrant, magnetic particles, eddy currents etc. to determine the quality of a material without permanently altering the completeness or properties of the material being tested.

method of testing which does not destroy or alter the item being test ed. [D05030] SCL

Testing in which the part being tested is not rendered unusable.

The examination of an object or material with technology that does not affect the object's future.

a method to evaluate the disposition, strength, or composition of materials without damaging the object under test. Typically used to evaluate moisture content in roofing assemblies, the three common test methods are electrical capacitance, infrared thermography, and nuclear back-scatter.

Method of inspecting materials and products without affecting their subsequent properties and performance. Abbreviation NDT.

Testing of building materials in a manner that does not destroy the material.