Visual Testing (VT) or Visual Inspection (VI) is the versatile testing method used human senses with any non-specialised inspection equipment. A VT or VI is commonly required by standards and one of most important NDT methods that can reveal surface defects of any industrial products during manufacturing process or during the service as well as required prior performing other NDT. (Refer to the NDT (Non-Destructive Testing))

Related Definitions in the Project: The Quality Management; Construction