# ISO 15685:2004 — Withdrawn and superseded ISO standards

For ISO 15685:2004, item title is Soil quality — Determination of  potential nitrification and inhibition of nitrification — Rapid test by ammonium oxidation; status code is 9599; successor is ISO 15685:2012; withdrawn / published date is 2004-03-30, recorded from its source on 2026-08-05.

- **Identifier:** ISO 15685:2004 _(verified: appears in the quote below)_
- **Item title:** Soil quality — Determination of  potential nitrification and inhibition of nitrification — Rapid test by ammonium oxidation _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 15685:2012
- **Withdrawn / published date:** 2004-03-30 _(verified: appears in the quote below)_

## What the source says

> 25612,IS,,ISO 15685:2004,Soil quality — Determination of potential nitrification and inhibition of nitrification — Rapid test by ammonium oxidation,Qualité du sol — Détermination de la nitrification potentielle et inhibition de la nitrification — Essai rapide par oxydation de l'ammonium,2004-03-30,1,['13.080.30'],ISO/TC 190/SC 4,9599,,[53530],['en'],8,"<p>ISO 15685:2004 specifies a rapid method for the determination of the potential rate of ammonium oxidation and inhibition of nitrification in soils. This method is suitable for all soils containing a population of nitrifying microorganisms. It can be used as a rapid screening test for monitoring soil quality and quality of wastes, and is su

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).