# ISO 945-1:2017 — Withdrawn and superseded ISO standards For ISO 945-1:2017, item title is Microstructure of cast irons — Part 1: Graphite classification by visual analysis; status code is 9599; successor is ISO 945-1:2019; withdrawn / published date is 2017-12-14, recorded from its source on 2026-08-05. - **Identifier:** ISO 945-1:2017 _(verified: appears in the quote below)_ - **Item title:** Microstructure of cast irons — Part 1: Graphite classification by visual analysis _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 945-1:2019 - **Withdrawn / published date:** 2017-12-14 _(verified: appears in the quote below)_ ## What the source says > 66644,IS,,ISO 945-1:2017,Microstructure of cast irons — Part 1: Graphite classification by visual analysis,Microstructure des fontes — Partie 1: Classification du graphite par analyse visuelle,2017-12-14,2,['77.080.10'],ISO/TC 25,9599,"[41501,55897]",[77568],"['en','fr']",32,"

ISO 945-1:2017 specifies a method of classifying the microstructure of graphite in cast irons by comparative visual analysis.

The purpose of this document is to provide information about the method of graphite classification. It is not intended to give information on the suitability of cast-iron types and grades for any particular application.

The particular material grades are specified mainly by mechani ## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).