scope:

This International Standard provides general guidance on methods of carrying out penetrant inspection on materials and components both during manufacture and in service, for example in situ inspection. It does not deal with levels of acceptance or rejection, which should be the subject of separate International Standards or of agreement between the parties concerned. Penetrant inspection is used to locate discontinuities, such as laps, folds, cracks, porosity and fissures, which are open to the surface of a material or component. Penetrant techniques can be used on materials irrespective of their physical properties, provided that the surface is normally non-absorbent and compatible with the penetrant process.