# ISO 14238:1997 — Withdrawn and superseded ISO standards For ISO 14238:1997, item title is Soil quality — Biological methods — Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes; status code is 9599; successor is ISO 14238:2012; withdrawn / published date is 1997-02-13, recorded from its source on 2026-08-05. - **Identifier:** ISO 14238:1997 _(verified: appears in the quote below)_ - **Item title:** Soil quality — Biological methods — Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 14238:2012 - **Withdrawn / published date:** 1997-02-13 _(verified: appears in the quote below)_ ## What the source says > 23950,IS,,ISO 14238:1997,Soil quality — Biological methods — Determination of nitrogen mineralization and nitrification in soils and the influence of chemicals on these processes,"Qualité du sol — Méthodes biologiques — Détermination de la minéralisation de l'azote et de la nitrification dans les sols, et de l'influence des produits chimiques sur ces processus",1997-02-13,1,['13.080.30'],ISO/TC 190/SC 4,9599,,[56033],"['en','fr']",11,

Specifies laboratory procedures for measuring the mineralization and nitrification of nitrogen by the soil microflora. Gives a simple procedure for investigation of the potential toxicity of chemicals to N-mineralization in soils.

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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).