Nanotechnology - Measurement of particle shape and size distributions using scanning electron microscopy

Nanotechnology - Measurement of particle shape and size distributions using scanning electron microscopy

Standard Number UNI EN ISO 19749:2023
Organization Italian National Unification Italy
Level National
Category Test Method | Characterization | Measurement
Status
  • JUN 2023 Published
ABSTRACT

This standard specifies methods for determining the shape and size distributions of nanoparticles by acquiring and evaluating scanning electron microscope images and obtaining and reporting accurate results. This document applies to particles with a lower size limit that depends on the required uncertainty and adequate performance of the SEM, which must be evaluated first - according to the requirements described in this document. This document also applies to SEM-based size and shape measurements of particles larger than the nanoscale.