# ISO 23753-2:2005 — Withdrawn and superseded ISO standards

For ISO 23753-2:2005, item title is Soil quality — Determination of dehydrogenase activity in soils — Part 2: Method using iodotetrazolium chloride (INT); status code is 9599; successor is ISO 23753-2:2019; withdrawn / published date is 2005-10-27, recorded from its source on 2026-08-05.

- **Identifier:** ISO 23753-2:2005 _(verified: appears in the quote below)_
- **Item title:** Soil quality — Determination of dehydrogenase activity in soils — Part 2: Method using iodotetrazolium chloride (INT) _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 23753-2:2019
- **Withdrawn / published date:** 2005-10-27 _(verified: appears in the quote below)_

## What the source says

> 37976,IS,,ISO 23753-2:2005,Soil quality — Determination of dehydrogenase activity in soils — Part 2: Method using iodotetrazolium chloride (INT),Qualité du sol — Détermination de l'activité des déshydrogénases dans les sols — Partie 2: Méthode au chlorure de iodotétrazolium (CIT),2005-10-27,1,['13.080.30'],ISO/TC 190/SC 4,9599,,[70146],"['en','fr']",5,"<p>ISO 23753-2:2005 specifies a method for determining soil dehydrogenase activity using 2-(4-iodophenyl)-3-(4-nitrophenyl)-5-phenyltetrazolium chloride (INT). As the INT reduction is less sensitive to O<sub>2</sub>, the method is more reproducible than the TTC-method described in ISO 23753-1. It is not applicable for determining the dehydroge

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).