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ISO 19749:2021

ISO 19749:2021

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Nanotechnologies — Measurements of particle size and shape distributions by scanning electron microscopy

Published By Publication Date Number of Pages
ISO 2021-07 78
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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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ISO 19749:2021
$50.70