本文件描述了评估用于煤炭清洁作业的密度分离设备性能的原理和方法。规定了测试和取样程序，并详细说明了呈现测试结果的方法。推荐和定义了性能参数，并制定了它们的确定方法，从而允许它们用于评估、比较和预测煤炭清洁作业的性能水平。 本文件适用于使用相对密度（RD）作为主要分离特征的以下类型的选煤设备: a） 重介质分离器； b） 夹具； c） 其他基于密度的分离器，包括螺旋分离器、受阻沉降清洁器、振动台、纯水旋风分离器等。

This document describes the principles and methods for evaluating the performance of density separation equipment used for coal cleaning operations. Testing and sampling procedures are specified, and methods of presenting test results are detailed. Performance parameters are recommended and defined, and their determination is formulated, thereby permitting their use in evaluating, comparing and predicting performance levels of coal cleaning operations. This document is applicable to the following types of coal cleaning equipment using relative density (RD) as the main characteristic for separation: a) dense-medium separators; b) jigs; c) other density-based separators, including spiral separator, hindered settling cleaners, shaking table, water-only cyclone, etc.