# ISO 10390:1994 — Withdrawn and superseded ISO standards

For ISO 10390:1994, item title is Soil quality — Determination of pH; status code is 9599; successor is ISO 10390:2005; withdrawn / published date is 1994-07-21, recorded from its source on 2026-08-05.

- **Identifier:** ISO 10390:1994 _(verified: appears in the quote below)_
- **Item title:** Soil quality — Determination of pH _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 10390:2005
- **Withdrawn / published date:** 1994-07-21 _(verified: appears in the quote below)_

## What the source says

> 18454,IS,,ISO 10390:1994,Soil quality — Determination of pH,Qualité du sol — Détermination du pH,1994-07-21,1,['13.080.10'],ISO/TC 190/SC 3,9599,,[40879],"['en','fr']",5,"<p>Specifies an instrumental method for the routine determination of pH using a glass electrode in a 1:5 (V/V) suspension of soil in water (pH-H<sub>2</sub>O), in a solution of 1 mol/l potassium chloride (pH-KCl) or in a solution of 0,01 mol/l calcium chloride (pH-CaCl<sub>2</sub>). Is applicable to all types of air-dried soil samples, e.g. pretreated according to ISO 11464.</p>"

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).