Visual Testing (VT)
A visual testing or visual inspection or visual examination of objects, parts or components is the oldest and reliable non-destructive testing method.The test method is applied to almost every product as a quality assurance tool. The most detrimental unacceptable discontinuities in the objects or items are the surface opening discontinuities. Visual scanning, inspection or testing can successfully detect these unacceptable surface discontinuities without applying expensive test methods.
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