標準號：ANSI/MSS SP-55-2011
中文標準名稱：閥門,法蘭,管件和其它管道部件用鑄鋼件質量標準.表面缺陷評定的目視檢驗方法.
英文標準名稱：Quality Standard for Steel Castings for Valves, Flanges, Fittings, and Other Piping Components - Visual Method for Evaluation of Surface Irregularities
標準類型：J31
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：J31
國際標準分類號：77.140.80
適用范圍：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.