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Visual Testing or VT

The simplest method to implement in appearance, but which requires optimal lighting and above all a good knowledge of the materials and their defectology, especially in the field of welding.

This control precedes any other NDT (Non Destructive Testing) and is complementary to the implementation of a more in-depth investigation.

Visual inspection can be carried out with the naked eye (direct) or by means of accessories and devices (indirect) allowing a more thorough and precise investigation: magnifying glass, boroscope, endoscope, angle mirror... etc).
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