Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics - Part 3: Determination of colouristic properties and ease of dispersion of black and colour pigments in polyethylene by two-roll milling
This part of EN specifies a method of determining in polyethylene the colouristic properties of a test pigment relative to a standard, and the ease of dispersion of pigments from the differences in colour strength on dispersing colouring materials under various conditions.