0

prEN ISO 20427

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

Publication date:   Apr 25, 2024

General information

40.20 DIS ballot initiated: 12 weeks   Apr 25, 2024

CEN

CEN/TC 298 Pigments and extenders

European Norm

87.060.10   Pigments and extenders

Buying

Draft

Language in which you want to receive the document.

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

NOW

IN_DEVELOPMENT
prEN ISO 20427
40.20 DIS ballot initiated: 12 weeks
Apr 25, 2024

Relations

Adopted from ISO 20427:2023 IDENTICAL