# ISO 5815:1983 — Withdrawn and superseded ISO standards For ISO 5815:1983, item title is Water quality — Determination of biochemical oxygen demand after n days (BODn) — Dilution and seeding method; status code is 9599; successor is ISO 5815:1989; withdrawn / published date is 1983-10-01, recorded from its source on 2026-08-05. - **Identifier:** ISO 5815:1983 _(verified: appears in the quote below)_ - **Item title:** Water quality — Determination of biochemical oxygen demand after n days (BODn) — Dilution and seeding method _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 5815:1989 - **Withdrawn / published date:** 1983-10-01 _(verified: appears in the quote below)_ ## What the source says > 11962,IS,,ISO 5815:1983,Water quality — Determination of biochemical oxygen demand after n days (BODn) — Dilution and seeding method,Qualité de l'eau — Détermination de la demande biochimique en oxygène après n jours (DBOn) — Méthode par dilution et ensemencement,1983-10-01,1,['13.060.50'],ISO/TC 147/SC 2,9599,,[11963],"['en','fr']",4, ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).