# ISO/TS 21268-4:2007 — Withdrawn and superseded ISO standards

For ISO/TS 21268-4:2007, item title is Soil quality — Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials — Part 4: Influence of pH on leaching with initial acid/base addition; status code is 9599; successor is ISO 21268-4:2019; withdrawn / published date is 2007-11-15, recorded from its source on 2026-08-05.

- **Identifier:** ISO/TS 21268-4:2007 _(verified: appears in the quote below)_
- **Item title:** Soil quality — Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials — Part 4: Influence of pH on leaching with initial acid/base addition _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 21268-4:2019
- **Withdrawn / published date:** 2007-11-15 _(verified: appears in the quote below)_

## What the source says

> 39105,TS,,ISO/TS 21268-4:2007,Soil quality — Leaching procedures for subsequent chemical and ecotoxicological testing of soil and soil materials — Part 4: Influence of pH on leaching with initial acid/base addition,Qualité du sol — Modes opératoires de lixiviation en vue d'essais chimiques et écotoxicologiques ultérieurs des sols et matériaux du sol — Partie 4: Essai de dépendance au pH avec ajout initial d'acide/base,2007-11-15,1,['13.080.05'],ISO/TC 190/SC 7,9599,,[68730],"['en','fr']",23,"<p>ISO/TS 21268-4:2007 specifies a test method to obtain information on the short- and long-term leaching behaviour and characteristic properties of materials. It applies to the determination of the infl

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).