CEN ISO/TS 24672:2024

Nanotechnologies - Guidance on the measurement of nanoparticle number concentration (ISO/TS 24672:2023) CEN ISO/TS 24672:2024

Publication date:   Nov 14, 2024

General information

60.60 Standard published   Sep 18, 2024

CEN

CEN/TC 352 Nanotechnologies

Technical Specification

07.120   Nanotechnologies

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Scope

This document provides an overview of the methods used to determine the nanoparticle number concentration in liquid dispersions and aerosols. The methods described are the ensemble measurement techniques of differential centrifugal sedimentation (DCS), multi-angle dynamic light scattering (MDLS), small-angle X-ray scattering (SAXS) and ultraviolet-visible spectroscopy (UV-vis) and the particle counting methods of particle tracking analysis (PTA), resistive pulse sensing (RPS), single particle inductively coupled plasma mass spectrometry (spICP-MS), condensation particle counter (CPC), and differential mobility analysing system (DMAS). This document provides information on the use of each technique, along with considerations on sample preparation, advantages and limitations.

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PUBLISHED
CEN ISO/TS 24672:2024
60.60 Standard published
Sep 18, 2024

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Adopted from ISO/TS 24672:2023 IDENTICAL