BS EN ISO 23900-5:2018规定了一种评估着色剂在热塑性聚合物中分散程度的方法。该方法适用于测试用于挤出和熔融纺丝工艺的所有聚合物中以颜色浓缩物形式存在的着色剂。根据本方法确定的过滤器压力值（FPV）仅对所使用的设备、条件和试验聚合物有效。使用不同于规定的试验条件可能会产生不同的结果。ISO 23900的本部分未规定颜色浓缩物的制备方法。因此，只有在使用相同的浓缩色素制备方法时，单个着色剂的结果才具有可比性。 交叉引用:EN 10088-1ISO 9044包含以下内容:勘误表，2018年10月

BS EN ISO 23900-5:2018 specifies a method of assessing the degree of dispersion of a colorant in a thermoplastic polymer.The method is suitable for testing colorants in the form of colour concentrates in all polymers used for extrusion and melt-spinning processes.The filter pressure value (FPV) determined according to this method is valid only for the equipment, conditions and test polymer being used. The use of test conditions differing from those specified might give different results. The method of preparing the colour concentrate is not specified in this part of ISO 23900. The results obtained for individual colorants are therefore comparable only when the same method of preparation for colour concentrates is used.Cross References:EN 10088-1ISO 9044Incorporates the following:Corrigendum, October 2018