ISO 4967:2026PDF
Steel — Determination of the non-metallic inclusion content — Micrographic method Published (Edition 4, 2026)
Steel — Determination of the non-metallic inclusion content — Micrographic method Published (Edition 4, 2026)
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Steel — Determination of the non-metallic inclusion content — Micrographic method Published (Edition 4, 2026)
Abstract
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).
General information
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Status : PublishedPublication date : 2026-05Stage: International Standard published [60.60]
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Edition : 4Number of pages : 56
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Technical Committee : ISO/TC 17/SC 7ICS : 77.040.99