EN 12877-4:1999
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Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 4: Determination by two-roll milling
Published date
20-10-1999
Publisher
This Part of EN 12877 describes a method for determining the colour stability of colouring materials under defined conditions in plastics by two-roll milling. The result of the determination is a relative value, not an absolute one. The method is mainly used for testing colouring materials in polyvinyl chloride.
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