NBN ISO 19749:2022

NBN ISO 19749:2022

Nanotechnologies — Measurements of particle size and shape distributions by scanning electron microscopy ISO 19749:2021

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This document specifies methods of determining nanoparticle size and shape distributions by acquiring and evaluating scanning electron microscope images and by obtaining and reporting accurate results. NOTE 1 This document applies to particles with a lower size limit that depends on the required uncertainty and on the suitable performance of the SEM, which is to be proven first -according to the requirements described in this document. NOTE 2 This document applies also to SEM-based size and shape measurements of larger than nanoscale particles.
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Additional Info

Author Bureau de Normalisation Belge (NBN)
Published by NBN
Document type Standard
ICS 120
Replaced by NBN EN ISO 19749:2023
Document history Yes
Keyword ISO 19749, ISO 19749:2022