Aktívna norma | Vydaná: 06.11.2023

ISO/TS 24672:2023

Nanotechnologies — Guidance on the measurement of nanoparticle number concentration
(Nanotechnologies — Conseils pour la mesure de la concentration en nombre de nanoparticules)

Dostupné jazyky: Anglicky

Dostupné prevedenie: Elektronické PDF, Tlačené

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Podrobné informácie

Označenie: ISO/TS 24672:2023

Dátum vydania: 06.11.2023

Stránok: 50

Krajina: Medzinárodná technická norma

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Anotácia

Description / Abstract: 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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