ČSN EN ISO 19749

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

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Detail information

Designation: ČSN EN ISO 19749

Publication date: 01/09/2023

Pages: 84

Country: Czech technical standard

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Anotation

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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