ISO-19749 › Nanotechnologies - Measurements of particle size and shape distributions by scanning electron microscopy
ISO-19749
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1ST EDITION
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CURRENT
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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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Document Number
ISO 19749:2021
Revision Level
1ST EDITION
Status
Current
Publication Date
July 1, 2021
Committee Number
ISO/TC 229