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Selected Document Category:Document Awaiting to be Published
Source:International Organization for Standardization
Anticipated Publication Year:2022
Publication Year:
Acronym:ISO
Identifier:TR 24672
Document Title:Nanotechnologies – Guidance on the measurement of nanoparticle number concentration
url:
Scope:

This Technical Report provides an overview of 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) and differential mobility analysing system
(DMAS)/condensation particle counter (CPC). This document provides information on the use of each technique, along with considerations on sample preparation, advantages and limitations.

Keywords:nanoparticle, dispersions, measurement techniques
Type of Document:a. Standard
Issues Areas:Measurement and Characterizations
Primary Category:
Additional Categories
Goal or Need:This Technical Report will provide guidance to help users to select the most appropriate techniques for nanoparticle number concentration measurements suitable for their applications.
Intended Stakeholders:
Is it Being Implemented:
Submitter's Name:Heather Benko
Submitter's e-mail:[email protected]
Submitter's Company:ANSI
Additional Comments:This document is under development by ISO/TC 229 JWG 2 - Measurement and characterization
Contact for Additional Info:



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