# ISO 7404-4:2017 — Withdrawn and superseded ISO standards For ISO 7404-4:2017, item title is Methods for the petrographic analysis of coals — Part 4: Method of determining microlithotype, carbominerite and minerite composition; status code is 9599; successor is ISO 7404-4:2025; withdrawn / published date is 2017-08-09, recorded from its source on 2026-08-05. - **Identifier:** ISO 7404-4:2017 _(verified: appears in the quote below)_ - **Item title:** Methods for the petrographic analysis of coals — Part 4: Method of determining microlithotype, carbominerite and minerite composition _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 7404-4:2025 - **Withdrawn / published date:** 2017-08-09 _(verified: appears in the quote below)_ ## What the source says > 69224,IS,,ISO 7404-4:2017,"Methods for the petrographic analysis of coals — Part 4: Method of determining microlithotype, carbominerite and minerite composition","Méthodes d'analyse pétrographique des charbons — Partie 4: Détermination de la composition en microlithotypes, carbominérites et minérites",2017-08-09,2,['73.040'],ISO/TC 27/SC 5,9599,[14130],[87003],['en'],9,"

ISO 7404-4:2017 specifies a method, using a graticule with 20 crossline intersections, for determining the proportions of microlithotypes, carbominerite and minerite in coals. It applies only to determinations made on polished particulate blocks using reflected white light (about 400 nm to 700 nm). Additional blue, blue-vi ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).