ANSI/MSS SP-55-2011 Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components - Visual Method for Evaluation of Surface Irregularities
Allows visual evaluation of surface irregularities in steel castings for valves, flanges, fittings, and other piping components. This standard establishes requirements for the following: (a) Visual surface irregularity acceptance standards for steel parts; (b) Supplements requirements in identified ASTM Standards; (c) Provides a series of referenced photographs typical of the various surface irregularities; and (d) Illustrations of generally acceptable and generally rejectable quality.