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