Visual testing is one of the most used NDT methods, usually the first part of any inspection, due to its immediate evaluation. Once the visual testing is performed, it can be established which non-destructive method can be further used.
- The identification of all visible flaws on the surface;
- The inspection of less accessible areas.
Types of examinations:
- Direct examination;
- Indirect examination using magnifiers, endoscopes etc.
- Low costs.