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ISO 13099-2:2025 PDF — Colloidal systems — Methods for zeta-potential determination — Part 2… — GOST Standards

//ISO 13099-2:2025

ISO 13099-2:2025

Name: ISO 13099-2:2025 — Colloidal systems — Methods for zeta-potential determination — Part 2: Optical methods
SKU: ISO 13099-2:2025
Price: 25 EUR
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Colloidal systems — Methods for zeta-potential determination — Part 2: Optical methods

Название (английский):

ISO 13099-2:2025

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

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 21
Дата публикации:: 6 августа 2025 г.
Издание:: ISO IS 13099 edition 2 version 1
ICS:: 19.120

Тип поставки:

Full version25 €Ask AI2 €Read online 24h10 €Read online 72h15 €

Язык документа:

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Срок поставки:1 рабочий день

Цена:25 €

Описание (английский):

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.

Abstract

Overview

Key Topics and Requirements

Measurement principles: electrophoresis and electroosmosis in a cell under an applied electric field; superposition of electrophoretic velocity and electroosmotic flow.
Methods covered:
- Video microscopy: direct visual tracking of particle motion.
- Electrophoretic light‑scattering (ELS): optical Doppler methods (including PALS and modulated Brownian motion power spectrum methods).
ELS technical elements:
- Cell design and cell constant determination.
- Optical arrangements (reference beam setups).
- Signal processing techniques: spectrum analysis, autocorrelation functions, phase analysis light scattering (PALS), and modulated Brownian motion approaches.
Calculation: determination of electrophoretic mobility and translation to zeta‑potential (theoretical conversion methods are detailed in ISO 13099‑1).
Operational procedures:
- Instrument siting, dispersion liquids, sample cell requirements, sample inspection/preparation, dilution and concentration guidance.
- Verification practices: use of reference materials, assessment of repeatability, intermediate precision, and trueness.
Error sources: contamination, improper preparation, inappropriate medium, temperature instability, optical surface defects, excessive applied potential, air bubbles, electroosmosis effects, and calculation pitfalls.
Informative annex on electroosmosis within capillary cells.

Applications and Who Uses This Standard

ISO 13099‑2:2025 is applicable to laboratories, instrument manufacturers, researchers, and quality professionals who need reliable optical measurement of particle electrokinetics. Typical use cases:

Assessing colloidal stability and predicting suspension/emulsion behavior.
Surface charge and adsorption studies for nanoparticles, colloids, and macromolecules.
Method validation, instrument design, and standardized reporting in R&D, pharmaceuticals, cosmetics, materials science, and environmental monitoring.

Related Standards

ISO 13099‑1 - theoretical models and overview for zeta‑potential determination (required companion document).
ISO 13099 series and related particle characterization standards from ISO/TC 24.

Keywords: ISO 13099-2:2025, zeta‑potential, electrophoretic mobility, electrophoretic light‑scattering, ELS, PALS, video microscopy, colloidal systems, electroosmosis, cell constant.

Технические детали

Технический комитет: ISO/TC 24/SC 4 - Particle characterization
SKU: ISO 13099-2:2025

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PDF

ISO 13099-2:2025

Abstract

Overview

Похожие стандарты

Key Topics and Requirements

Applications and Who Uses This Standard

Related Standards

Технические детали

BS ISO 13099-1:2012

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

ISO 13099-2:2012

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

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

Adventure tourism — Hiking and trekking activities — Requirements and recommendations

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