ASNT-2201 2012 Standard Reference Photographs for Liquid Penetrant Inspection: Adjunct to ASTM E 433

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Standard Reference Photographs for Liquid Penetrant Inspection: Adjunct to ASTM E 433: these photographs were prepared to provide a way of establishing types and characteristics of surface discontinuities detectable by the penetrant inspection methods. Contents: two types and four classes of indications are shown and they may be used as references for acceptance standards, specifications, and drawings.