ISO 20427:2023

Published (Edition 1, 2023)

ISO 20427:2023

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Abstract

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.

General information

Status
: Published

Publication date
: 2023-11

Stage
: International Standard to be revised [90.92]
Edition
: 1

Number of pages
: 22
Technical Committee :
ISO/TC 256

ICS :
87.060.10
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