1.1本文件涵盖了钢和铁铸件表面目视检测的验收标准。 1.2验收水平使用铸造工业标准化局（BNIF）和铸钢件研究和贸易协会（SCRATA）或国际铸造技术（CTI）参考比较器目视测定表面粗糙度和表面不连续性，如下所述: -表面粗糙度； -热敷料； -机械修整； -非金属夹杂物； -气体孔隙率； -融合不连续性； -膨胀不连续性； -金属嵌件。

1.1 This document covers the acceptance criteria for the visual testing of the surface of steel and iron castings. 1.2 Acceptance levels utilize Bureau de Normalisation des Industries de la Fonderie (BNIF) and Steel Castings Research and Trade Association (SCRATA) or Casting Technology International (CTI) reference comparators for the visual determination of surface roughness and surface discontinuities described as follows: — surface roughness; — thermal dressing; — mechanical dressing; — non-metallic inclusions; — gas porosity; — fusion discontinuities; — expansion discontinuities; — metal inserts.