Method B lipophilic emulsifier, F-5E-SP/1 diffuses into the penetrant to clear the penetrant from the surface of the part being inspected. It is rinsed from the part by water, carrying penetrant of
This method is to determine whether defect exists by reflecting the image on a film and CRT and penetrating radioactive ray of X-ray, 􀇱-ray, etc into the object to be inspected