本文件规定了一种通过使用圆刷的水平筛分运动法对焙烤咖啡粉进行粒度分布分析的方法，以最小化阻塞、结块和粘附的影响。它规定了遵循有关仪器、程序和结果表示的一般原则。 本文件适用于粒径约为150？的颗粒微米至2毫米。

This document specifies a method for carrying out particle-size distribution analysis of roasted ground coffee by horizontal sieving motion method using circular brushes to minimize the effects of obstruction, agglomeration and adhesion. It specifies general principles to follow concerning apparatus, procedure and presentation of results. This document is applicable to particle sizes ranging from approximately 150？μm to 2？mm.