# ISO 20427:2023 — Withdrawn and superseded ISO standards

For ISO 20427:2023, item title is Pigments and extenders — Dispersion procedure for sedimentation-based particle sizing of suspended pigment or extender with liquid sedimentation methods; status code is 9599; successor is ISO 20427:2026; withdrawn / published date is 2023-11-21, recorded from its source on 2026-08-05.

- **Identifier:** ISO 20427:2023 _(verified: appears in the quote below)_
- **Item title:** Pigments and extenders — Dispersion procedure for sedimentation-based particle sizing of suspended pigment or extender with liquid sedimentation methods _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 20427:2026
- **Withdrawn / published date:** 2023-11-21 _(verified: appears in the quote below)_

## What the source says

> 80236,IS,,ISO 20427:2023,Pigments and extenders — Dispersion procedure for sedimentation-based particle sizing of suspended pigment or extender with liquid sedimentation methods,Pigments et matières de charge — Mode opératoire de dispersion pour la détermination granulométrique basée sur la sédimentation des pigments ou matières de charge en suspension par des méthodes de sédimentation dans un liquide,2023-11-21,1,['87.060.10'],ISO/TC 256,9599,,[90660],"['en','fr']",22,"<p class='MsoBodyText'><span lang='EN-GB'>This document specifies sample preparation methods to determine the size distribution of separate particles of a single pigment or extender, which is dispersed in a liquid by applicat

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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).