ISO 14411-2:2020 颗粒参考材料的制备 第2部分：多分散球形颗粒

标准编号：ISO 14411-2:2020

中文名称：颗粒参考材料的制备 第2部分：多分散球形颗粒

英文名称：Preparation of particulate reference materials — Part 2: Polydisperse spherical particles

发布日期：2020-09

标准范围

本文件描述了粒径分布不确定度可接受的球形多分散颗粒标准物质的规范，并描述了其表征方案。这些参考材料的一个潜在用途是激光衍射仪和其他粒度测定方法的可靠性测试。本文件阐述了多分散性和尺寸的相关不确定性。尺寸的微小变化可能意味着累积分布的巨大变化。本文件描述了颗粒标准物质的要求，这些标准物质用于测试各种类型颗粒尺寸测量装置的可靠性。ISO 17034中描述了本文件未涉及的加工、均匀性和稳定性评估以及证书制备的要求。

This document describes the specifications for spherical polydisperse particulate reference materials with acceptable uncertainty in particle size distribution and describes protocols for their characterization. One potential use of these reference materials is the reliability test of the laser-diffraction instruments and other particle sizing methods.This document expresses polydispersity and the related uncertainties in size. Small variations in size can imply large variations in cumulative distribution.This document describes the requirements of particulate reference materials, which are intended to be used to test the reliability of various types of particle size measurement apparatus. The requirements for processing, homogeneity and stability assessment as well as for the preparation of certificates, which are not addressed in this document are described in ISO 17034.

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