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BSI BS ISO 17867:2020

Particle size analysis. Small angle X-ray scattering (SAXS)
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BSI BS ISO 17867:2020

Particle size analysis. Small angle X-ray scattering (SAXS)

PUBLISH DATE 2020
PAGES 36
BSI BS ISO 17867:2020

This document specifies a method for the application of small-angle X-ray scattering (SAXS) to the estimation of mean particle sizes in the 1 nm to 100 nm size range. It is applicable in dilute dispersions where the interaction and scattering effects between the particles are negligible. This document describes several data evaluation methods: the Guinier approximation, model-based data fitting, Monte-Carlo–based data fitting, the indirect Fourier transform method and the expectation maximization method. The most appropriate evaluation method is intended to be selected by the analyst and stated clearly in the report. While the Guinier approximation only provides an estimate for the mean particle diameter, the other methods also give insight in the particle size distribution.

SDO BSI: British Standards Institution
Document Number ISO 17867
Publication Date Oct. 9, 2020
Language en - English
Page Count 36
Revision Level
Supercedes
Committee LBI/37
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