# ISO 6615:1983 — Withdrawn and superseded ISO standards For ISO 6615:1983, item title is Petroleum products — Determination of carbon residue — Conradson method; status code is 9599; successor is ISO 6615:1993; withdrawn / published date is 1983-10-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 6615:1983 _(verified: appears in the quote below)_ - **Item title:** Petroleum products — Determination of carbon residue — Conradson method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 6615:1993 - **Withdrawn / published date:** 1983-10-01 _(verified: appears in the quote below)_ ## What the source says > 13027,IS,,ISO 6615:1983,Petroleum products — Determination of carbon residue — Conradson method,Produits pétroliers — Détermination du résidu de carbone — Méthode Conradson,1983-10-01,1,['75.080'],ISO/TC 28,9599,,[20865],"['en','fr']",7, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).