Borrador del Comité
ISO/CD 20427
Pigments and extenders — Dispersion procedure for sedimentation-based particle sizing of suspended pigment or extender with liquid sedimentation methods
Reference number
ISO/CD 20427
Edition 2
Borrador del Comité
ISO/CD 20427
90660
El comité está revisando un borrador.
Reemplazará ISO 20427:2023

Resumen

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.

Informaciones generales

  •  : En desarrollo
    : CD aprobado para su registro como DIS [30.99]
  •  : 2
  • ISO/TC 256
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