EN 12877-4:1999

Colouring materials in plastics - Determination of colour stability to heat during processing of colouring materials in plastics - Part 4: Determination by two-roll milling EN 12877-4:1999

Publication date:   Oct 23, 2003

Scope

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.