Steel — Determination of the non-metallic inclusion content — Micrographic method
NORMA vydána dne 29.5.2026
Označení normy: ISO 4967:2026-ed.4.0
Datum vydání normy: 29.5.2026
Počet stran: 56
Přibližná hmotnost: 168 g (0.37 liber)
Země: Mezinárodní technická norma
Kategorie: 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).