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prEVS-ISO 4967

Steel – Determination of the non-metallic inclusion content – Microcraphic method (ISO 4967:2026, identical)

General information

Draft. Expected publication date is 10.2026
Base Documents
ISO 4967:2026
Directives or regulations
None

Standard history

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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).

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