# ISO 5815-1:2003 — Withdrawn and superseded ISO standards

For ISO 5815-1:2003, item title is Water quality — Determination of biochemical oxygen demand after n days (BODn) — Part 1: Dilution and seeding method with allylthiourea addition; status code is 9599; successor is ISO 5815-1:2019; withdrawn / published date is 2003-03-31, recorded from its source on 2026-08-05.

- **Identifier:** ISO 5815-1:2003 _(verified: appears in the quote below)_
- **Item title:** Water quality — Determination of biochemical oxygen demand after n days (BODn) — Part 1: Dilution and seeding method with allylthiourea addition _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 5815-1:2019
- **Withdrawn / published date:** 2003-03-31 _(verified: appears in the quote below)_

## What the source says

> 31090,IS,,ISO 5815-1:2003,Water quality — Determination of biochemical oxygen demand after n days (BODn) — Part 1: Dilution and seeding method with allylthiourea addition,Qualité de l'eau — Détermination de la demande biochimique en oxygène après n jours (DBOn) — Partie 1: Méthode par dilution et ensemencement avec apport d'allylthiourée,2003-03-31,1,['13.060.50'],ISO/TC 147/SC 2,9599,[11963],[69058],"['en','fr']",15,"<p>ISO 5815-1:2003 specifies a determination of the biochemical oxygen demand of waters by dilution and seeding with suppression of nitrification.</p><p>ISO 5815-1:2003 is applicable to all waters having biochemical oxygen demands greater than or equal to 3 mg/l of oxygen (the

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).