International Standard
ISO 20427:2026
Pigments and extenders — Dispersion procedure for sedimentation-based particle sizing of suspended pigment or extender with liquid sedimentation methods
Reference number
ISO 20427:2026
Edition 2
2026-03
Preview
ISO 20427:2026
90660
No disponible en español
Publicado (Edición 2, 2026)

ISO 20427:2026

ISO 20427:2026
90660
Idioma
Formato
CHF 135

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

  •  : Publicado
     : 2026-03
    : Norma Internacional publicada [60.60]
  •  : 2
     : 23
  • ISO/TC 256
    87.060.10 
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