ISO 19749:2021

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

Publication date:   Jul 5, 2021

General information

60.60 Standard published   Jul 5, 2021

ISO

ISO/TC 229 Nanotechnologies

International Standard

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.
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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PUBLISHED
ISO 19749:2021
60.60 Standard published
Jul 5, 2021