Loading...
 

Tracker Item History

View Tracker Item

Version Date User Field ID Field Difference
1 2025-02-11 14:01 admin 194 Identifier (e.g. document designation number)
-TR 24672 +TS 24672
      196 Scope/description
-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. +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.
      198 Publication year
- +2023
      203 Goal or need for this document
-This Technical Report will provide guidance to help users to select the most appropriate techniques for nanoparticle number concentration measurements suitable for their applications. +This document will provide guidance to help users to select the most appropriate techniques for nanoparticle number concentration measurements suitable for their applications.
      210 Additional comments
-This document is under development by ISO/TC 229 JWG 2 - Measurement and characterization +
      213 URL Link
- +https://webstore.ansi.org/standards/iso/isots246722023
      215 Select Document Category
-Document Awaiting to be Published +Published Document
::::