标准编号：ISO 23900-2:2015
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2部分：通过双辊磨增塑聚氯乙烯色彩性能分散性的测定
英文名称：Pigments and extenders — Methods of dispersion and assessment of dispersibility in plastics — Part 2: Determination of colouristic properties and ease of dispersion in plasticized polyvinyl chloride b
发布日期：2015-05
标准范围
This part of this ISO 23900 specifies a method of determining the colouristic properties of a test pigmentrelative to a standard, and the ease of dispersion DHPVC-P of pigments from the differences in colourstrength on dispersing colouring materials under various conditions in plasticized polyvinyl chloride(PVC-P) compounds.The method is appropriate for use with organic and inorganic black and colour pigments and for pigmentpreparations.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 between valuesof the ease of dispersion of various pigments. The subscript DHPVC-P is therefore used to designate thevalue obtained as specified in this part of ISO 23900.The principle of this part of ISO 23900 may also be used for routine quality control purposes by referenceto the photometric data generated from the sheets milled at 130 °C. For quality control purposes, the ratioof pigment to TiO2 may be agreed between the interested parties. Ratios of 1:10 for organic pigmentsand 0,2 to 0,5:1 for inorganic pigments are suggested as convenient and widely used standard ratios.Annex A is informative and gives a description of a suitable basic compound.
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