# ISO 7404-5:2009 — Withdrawn and superseded ISO standards For ISO 7404-5:2009, item title is Methods for the petrographic analysis of coals — Part 5: Method of determining microscopically the reflectance of vitrinite; status code is 9599; successor is ISO/WD 7404-5 | ISO 7404-5:2025; withdrawn / published date is 2009-09-24, recorded from its source on 2026-08-05. - **Identifier:** ISO 7404-5:2009 _(verified: appears in the quote below)_ - **Item title:** Methods for the petrographic analysis of coals — Part 5: Method of determining microscopically the reflectance of vitrinite _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO/WD 7404-5 | ISO 7404-5:2025 - **Withdrawn / published date:** 2009-09-24 _(verified: appears in the quote below)_ ## What the source says > 42832,IS,,ISO 7404-5:2009,Methods for the petrographic analysis of coals — Part 5: Method of determining microscopically the reflectance of vitrinite,Méthodes d'analyse pétrographique des charbons — Partie 5: Détermination au microscope du pouvoir réflecteur de la vitrinite,2009-09-24,3,['73.040'],ISO/TC 27/SC 5,9599,[14132],"[83414,87004]",['en'],14,"
ISO 7404-5:2009 specifies the methods for determining the reflectance of vitrinite of coals microcopically on the polished surfaces, immersed in oil. The methods are applicable to coals from single seams or coal blends covering the whole range of low-, medium- and high-rank coal.
Vitrinite reflectance measurements can be used to charac ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).