BS ISO 17867:2020
Particle size analysis. Small angle X-ray scattering (SAXS)
BS ISO 17867:2020 发布历史
1 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.
BS ISO 17867:2020由英国标准学会 GB-BSI 发布于 2020-10-31，并于 2020-10-31 实施。
BS ISO 17867:2020在国际标准分类中归属于: 19.120 粒度分析、筛分。
BS ISO 17867:2020的历代版本如下：
- 2020年 BS ISO 17867:2020
- 2015年 BS ISO 17867:2015 粒径分析. 小角X射线散射
- 标准号
- BS ISO 17867:2020
- 发布
- 2020年
- 发布单位
- 英国标准学会
- 当前最新
- BS ISO 17867:2020
- 适用范围
- 1 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.