标准摘要
[中文适用范围]： All current amendments available at time of purchase are included with the purchase of this document. [外文原描述]： This document specifies a micrographic method of determining the non-metallic inclusions in rolled or forged steel products having a reduction ratio of at least 3 using the images of a standard reference chart or direct measurement by image analysis technologies. The standard reference chart described in this document is not entirely applicable for certain types of steel (e.g. free cutting steels).
英文名称Steel — Determination of the non-metallic inclusion content — Micrographic method