DS/ISO 17867:2020

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


Status:
Current
Type:
Standard
Language:
English
Subject:
Price from:
€ 74.63

Scope

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.


Number of pages: 36

Published: 2020-10-14

Date of approval: 2020-10-12

International relationships : ISO 17867:2020 IDT

ICS: 19.120 - Particle size analysis. Sieving

Item number: M324189


Committees

Committee

  • ISO/TC 24/SC 4
  • ISO/TC 24/SC 4/WG 10

Danish committee

DS/S-438