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
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