Steel — Determination of the non-metallic inclusion content — Micrographic method
NORMA vydaná dňa 29.5.2026
Označenie normy: ISO 4967:2026-ed.4.0
Dátum vydania normy: 29.5.2026
Počet strán: 56
Približná hmotnosť: 168 g (0.37 libier)
Krajina: Medzinárodná technická norma
Kategória: Technické normy ISO
Description / 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).