ISO 19749:2021 纳米技术 用扫描电子显微镜测量粒度和形状分布

标准编号：ISO 19749:2021

中文名称：纳米技术 用扫描电子显微镜测量粒度和形状分布

英文名称：Nanotechnologies — Measurements of particle size and shape distributions by scanning electron microscopy

发布日期：2021-07

标准范围

本文件规定了通过获取和评估扫描电子显微镜图像以及通过获取和报告准确结果来确定纳米颗粒大小和形状分布的方法。注？1？本文件适用于尺寸下限的颗粒，该下限取决于所需的不确定度和SEM的适当性能，首先要根据本文件中描述的要求进行验证。注2:本文件也适用于基于SEM的大于纳米级颗粒的尺寸和形状测量。

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.

标准预览图