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standard by International Organization for Standardization, 05/01/2015
ISO 23900-2:2015 specifies a method of determining the colouristic properties of a test pigment relative to a standard, and the ease of dispersion DHPVC-P of pigments from the differences in colour strength 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 pigment preparations.