Pigments and extenders - Dispersion procedure for sedimentation-based particle sizing of suspended pigment or extender with liquid sedimentation methods
NORM herausgegeben am 1.2.2025
Bezeichnung normen: ČSN EN ISO 20427
Zeichen: 670561
Katalog-Nummer: 520490
Ausgabedatum normen: 1.2.2025
Zahl der Seiten: 36
Gewicht ca.: 108 g (0.24 Pfund)
Land: Tschechische technische Norm
Kategorie: Technische Normen ČSN
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