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prSSH EN ISO 20427:2024

Pigments and extenders - Dispersion procedure for sedimentation-based particle sizing of suspended pigment or extender with liquid sedimentation methods (ISO 20427:2023)

General information

40.60     May 7, 2025

50.99    Sep 23, 2025

DPS

DPS/KT 298

European Norm

87.060.10  

Scope

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 application of a standardized dispersion procedure, using an ultrasonic device, shaker device or wet jet mill.
The sample preparation methods described are optimized for measurements carried out with a particle sizing technique based on sedimentation. This technique relies on particle migration due to gravitation or centrifugal forces and requires a density contrast between the particles and the liquid phase.

Life cycle

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prSSH EN ISO 20427:2024
40.60 Close of voting
May 7, 2025

Related project

Adopted from EN ISO 20427:2024 IDENTICAL

Adopted from ISO 20427:2023 IDENTICAL