ISO 13099-2:2012

Name: ISO 13099-2:2012 — Colloidal systems — Methods for zeta-potential determination — Part 2: Optical methods
SKU: ISO 13099-2:2012
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Colloidal systems — Methods for zeta-potential determination — Part 2: Optical methods

Название (английский):

ISO 13099-2:2012

Colloidal systems — Methods for zeta-potential determination — Part 2: Optical methods

Статус документа:: Отменён
Формат:: Электронный (PDF)
Количество страниц:: 19
Дата публикации:: 18 июня 2012 г.
Издание:: ISO IS 13099 edition 1 version 1
ICS:: 19.120

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Описание (английский):

This part of ISO 13099 specifies two methods of measurement of electrophoretic mobility of particles suspended in a liquid: video microscopy and electrophoretic light-scattering. 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.

Abstract

Overview

Key topics and technical requirements

Measurement methods
- Video microscopy / microelectrophoresis: direct particle tracking using bright‑ or dark‑field illumination and CCD/video capture to determine particle velocity under an applied electric field.
- Electrophoretic light‑scattering (ELS): Doppler‑based ensemble method where frequency shifts of scattered coherent light yield electrophoretic mobility distributions.
Cell design and optics
- Requirements for cells that hold samples, apply a stable, homogeneous electric field, and provide optical access; designs may be capillary or cuvette‑type.
- Differences between reference‑beam and cross‑beam optical arrangements for ELS.
Signal processing and data analysis
- Extraction of Doppler shifts, frequency power spectra and mobility distributions; procedures to convert mobility into zeta‑potential using models given in ISO 13099‑1.
Operational procedures and quality assurance
- Requirements for sample preparation, measurement zones, cell constants or calibration, verification, and reporting.
- Identification and mitigation of sources of measurement error, including electroosmosis, thermal convection, particle concentration effects and optical alignment.
Ancillary guidance
- Annex on electroosmosis within capillary cells and normative references for terminology and theory.

Practical applications and users

ISO 13099-2 is intended for laboratories, instrument manufacturers and researchers involved in:

Colloid and surface chemistry characterization
Formulation and stability testing of paints, coatings, inks, cosmetics and pharmaceuticals
Nanomaterials characterization and quality control
Environmental and wastewater particle analysis
R&D groups developing zeta‑potential measurement instruments

By standardizing optical measurement methods (video microscopy and ELS), ISO 13099‑2 improves comparability, reproducibility and traceability of electrophoretic mobility and zeta‑potential data.

Related standards

ISO 13099‑1 - essential companion document covering theoretical models to convert electrophoretic mobility into zeta‑potential.
ISO 13099 series (other parts under development, e.g., acoustic methods)

Keywords: ISO 13099‑2, zeta‑potential, electrophoretic mobility, electrophoretic light scattering, video microscopy, colloidal systems, optical methods.

Технические детали

Технический комитет: ISO/TC 24/SC 4 - Particle characterization
SKU: ISO 13099-2:2012

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ISO 13099-2:2012

Abstract

Overview

Похожие стандарты

Key topics and technical requirements

Practical applications and users

Related standards

Технические детали

BS ISO 13099-1:2012

Colloidal systems. Methods for zeta-potential determination. Electroacoustic and electrokinetic phenomena.

ISO 8212:1986

Soaps and detergents — Techniques of sampling during manufacture

ISO 20662:2020

Ships and marine technology — Hopper dredger supervisory and control systems

ISO 3021:2023

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ISO 3826-2:2008

Plastics collapsible containers for human blood and blood components — Part 2: Graphical symbols for use on l…

ISO/IEC 24730-1:2014

Information technology — Real-time locating systems (RTLS) — Part 1: Application programming interface (API)

ISO 8668-5:1992

Aircraft — Terminal junction systems — Part 5: Detail specification for type 3 system

ISO 7574-3:1985

Acoustics — Statistical methods for determining and verifying stated noise emission values of machinery and e…