GSO ISO 19749:2024
ISO 19749:2021
Gulf Standard
Current Edition
·
Approved on
14 October 2024
Nanotechnologies — Measurements of particle size and shape distributions by scanning electron microscopy
GSO ISO 19749:2024 Files
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GSO ISO 19749:2024 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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