ISO/CD 4967
Steel — Determination of content of non-metallic inclusions — Micrographic method using standard diagrams
Reference number
ISO/CD 4967
Edition 4
Committee Draft
ISO/CD 4967
86687
A draft is being reviewed by the committee.
Will replace ISO 4967:2013

Abstract

ISO 4967:2013 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 standard diagrams. This method is widely used to assess the suitability of a steel for a given use. However, since it is difficult to achieve reproducible results owing to the influence of the test operator, even with a large number of specimens, precautions should be taken when using the method.

ISO 4967:2013 also provides for the determination of non-metallic inclusions by image analysis technologies.

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