95.99 Withdrawal of Standard Mar 11, 2026
ISO
ISO/TC 256 Pigments, dyestuffs and extenders
International Standard
87.060.10 Pigments and extenders
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.
WITHDRAWN
ISO 20427:2023
95.99
Withdrawal of Standard
Mar 11, 2026
PUBLISHED
ISO 20427:2026