International Standard
ISO 13099-2:2025
Colloidal systems — Methods for zeta-potential determination — Part 2: Optical methods
Reference number
ISO 13099-2:2025
Edition 2
2025-08
© ISO 2026
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Published (Edition 2, 2025)

ISO 13099-2:2025

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Abstract

This document specifies two methods of measurement of the electrophoretic mobility of particles suspended in a liquid: video microscopy and electrophoretic light-scattering.

NOTE            Estimation of surface charge and determination of zeta-potential can be achieved from measured electrophoretic mobility using proper theoretical models, which are described in detail in ISO 13099-1.

General information

  • Status
     : Published
    Publication date
     : 2025-08
    Stage
    : International Standard published [60.60]
  • Edition
     : 2
    Number of pages
     : 21
  • Technical Committee :
    ISO/TC 24/SC 4
    ICS :
    19.120 
  • RSS updates

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This standard contributes to the following Sustainable Development Goals

6
Clean Water and Sanitation
9
Industry, Innovation and Infrastructure

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