Penetrant methods based on the liquid penetrant directive on disabled slits, then when the Government substance control material to the surface, the stain will appear disabled.2.2. penetrant method allows the detection of defects on the surface or throughout the check character, with disabled condition to check material surface mouth openings and not hidden by other substances. The depth of the defect must be greater than the width of the mouth enough to cause capillary control substances.2.3. penetrant methods also apply to test the objects built with iron materials from when its permeability or shape and where the disabled appearance does not allow inspection by method of powder from.2.4. penetrant method can apply to products with complex shapes, can determine the position, speed and direction of the development of disability. When conducting check can be combined simultaneously with osmosis method to other methods.
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