ISO 20427:2023 颜料和体质颜料 用液体沉淀法对悬浮颜料或体质颜料进行基于沉淀的粒度测定的分散程序

标准编号：ISO 20427:2023

中文名称：颜料和体质颜料 用液体沉淀法对悬浮颜料或体质颜料进行基于沉淀的粒度测定的分散程序

英文名称：Pigments and extenders — Dispersion procedure for sedimentation-based particle sizing of suspended pigment or extender with liquid sedimentation methods

发布日期：2023-11

标准范围

本文件规定了样品制备方法，以确定单个颜料或增量剂的单独颗粒的尺寸分布，所述单个颜料或增量剂通过应用标准化分散程序，使用超声波装置、振荡器装置或湿式气流粉碎机分散在液体中。所描述的样品制备方法针对使用基于沉降的粒度技术进行的测量进行了优化。该技术依赖于由于重力或离心力引起的颗粒迁移，并且需要颗粒和液相之间的密度对比。

This document specifies sample preparation methods to determine the size distribution of separate particles of a single pigment or extender, which is dispersed in a liquid by application of a standardized dispersion procedure, using an ultrasonic device, shaker device or wet jet mill.

The sample preparation methods described are optimized for measurements carried out with a particle sizing technique based on sedimentation. This technique relies on particle migration due to gravitation or centrifugal forces and requires a density contrast between the particles and the liquid phase.

标准预览图