# ISO 7404-3:1994 — Withdrawn and superseded ISO standards For ISO 7404-3:1994, item title is Methods for the petrographic analysis of bituminous coal and anthracite — Part 3: Method of determining maceral group composition; status code is 9599; successor is ISO 7404-3:2009; withdrawn / published date is 1994-09-29, recorded from its source on 2026-08-05. - **Identifier:** ISO 7404-3:1994 _(verified: appears in the quote below)_ - **Item title:** Methods for the petrographic analysis of bituminous coal and anthracite — Part 3: Method of determining maceral group composition _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 7404-3:2009 - **Withdrawn / published date:** 1994-09-29 _(verified: appears in the quote below)_ ## What the source says > 14129,IS,,ISO 7404-3:1994,Methods for the petrographic analysis of bituminous coal and anthracite — Part 3: Method of determining maceral group composition,Méthodes d'analyse pétrographique des charbons bitumineux et de l'anthracite — Partie 3: Détermination de la composition en groupes de macéraux,1994-09-29,2,['73.040'],ISO/TC 27/SC 5,9599,[14128],[42831],['en'],6,
Cancels and replaces the first edition (1984). Specifies a method of determining the proportions of the maceral groups (and the minerals if desired) in coals. Concerned only with determinations made on polished particulate blocks using reflected white light. Not concerned with the determination of the proportions of naturally ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).