DIN EN 13900-6:2013-01

DIN EN 13900-6 specifies a method assessing the degree of dispersion of colorants and/or extenders in a thermoplastic polymer. The method is suitable for testing colorants and/or extenders in the form of concentrates or compounds in all polymers used for extrusion processes. Defects like gels, black specks, holes in the test film, etcetera, are not in the scope of this standard. The film test result determined according to this method is valid only for the equipment, conditions and test polymer being used. The use of test conditions differing from those specified might give different results. The preparation methods of concentrates or compounds are not specified in this standard. The results obtained for individual colorants and/or extenders are therefore comparable only when the same conditions of preparation for concentrates or compounds and a comparable detection system are used. DIN EN 13900-6 is one of a series of European Standards dealing with pigments and extenders. The DIN EN 13900 standard series consists of the following parts, under the general title "Pigments and extenders - Methods of dispersion and assessment of dispersibility in plastics": - Part 1: General introduction; - Part 2: Determination of colouristic properties and ease of dispersion in plasticized polyvinyl chloride by two-roll milling; - Part 3: Determination of colouristic properties and ease of dispersion of black and colour pigments in polyethylene by two-roll milling; - Part 4: Determination of colouristic properties and ease of dispersion of white pigments in polyethylene by two-roll milling; - Part 5: Determination by filter pressure value test; - Part 6: Determination by film test. The European Standard EN 13900-6 has been prepared by Working Group WG 1 "Colouring materials in plastics" at Technical Committee CEN/TC 298 "Pigments and extenders", the secretariat of which is held by DIN (Germany). The committee responsible for this standard is NA 078-00-05 AA "Farbmittel für Kunststoffe" ("Colorants for plastics") at DIN.