ISO 23900-3:2015规定了一种测定聚乙烯（PE）中试验颜料相对于标准的着色性能的方法，以及根据不同条件下分散着色剂的颜色强度差异来测定颜料的易分散性。 方法A适用于粉末形式的有机粉末颜料和炭黑颜料，其中许多颜料会被压实（在压力下重新凝聚），适用于粉末形式的无机颜料以及粉末或片状形式的颜料制剂。 方法B适用于测试颗粒状颜料和颜料制剂以及任何形式的无机颜料。

ISO 23900-3:2015 specifies a method of determining in polyethylene (PE) the colouristic properties of a test pigment relative to a standard, and the ease of dispersion DH_PE of pigments from the differences in colour strength on dispersing colouring materials under various conditions. Method A is appropriate for use with organic powder pigments and carbon black pigments in powder form, many of which are subject to compaction (reagglomeration under pressure), for inorganic pigments in powder form and for pigment preparations in powder or flake form. Method B is appropriate for testing pigments and pigment preparations in granular form and for inorganic pigments in any form.