标准编号:ISO 23900-4:2015
中文名称:颜料和填充剂 塑料中可分散性统计和评估方法 第4部分:通过双辊研磨白色颜料 性能分散性的测定
英文名称:Pigments and extenders — Methods of dispersion and assessment of dispersibility in plastics — Part 4: Determination of colouristic properties and ease of dispersion of white pigments in polyethylene b
发布日期:2015-05
标准范围
This part of ISO 23900 specifies a method of determining in polyethylene (PE) the colouristic propertiesof a test pigment relative to a standard, and the ease of dispersion DHPE of pigments from the differencesin colour strength on dispersing colouring materials under various conditions.Method A is appropriate for use with organic powder pigments and carbon black pigments in powderform, many of which are subject to compaction (reagglomeration under pressure), for inorganic pigmentsin 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 forinorganic pigments in any form.The ease of dispersion determined in this way is valid only for the dispersion equipment, dispersionconditions and dispersion medium being used. The use of test conditions differing from those specifiedmay give different results; this applies both to the absolute magnitude and to the relation betweenvalues of the ease of dispersion of various pigments. The subscript DHPE is therefore used to designatethe value obtained as specified in this part of ISO 23900.