EN ISO 19749:2023

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

Publication date:   Sep 19, 2023

General information

60.60 Standard published   Mar 29, 2023

CEN

CEN/TC 352 Nanotechnologies

European Norm

07.120   Nanotechnologies

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Scope

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.
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.
This document applies also to SEM-based size and shape measurements of larger than nanoscale particles.

Life cycle

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PUBLISHED
EN ISO 19749:2023
60.60 Standard published
Mar 29, 2023

Relations

Adopted from ISO 19749:2021 IDENTICAL