DS DS/EN ISO 305
DS DSEN SO 305 1999-AUG-16 Plastcs - Determnaton of thermal stablty of polyvnyl chlorde related chlorne-contanng homopolymers and copolymers and ther compounds - Dscoloraton method
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This standard specifies two methods for the determination of the thermal stability of products and compounds based on vinyl chloride homopolymers and copolymers (referred to simply as PVC in the following text) by the extent of the discoloration that occurs when they are exposed, in the form of sheet, to elevated temperatures.