PLASTICS – DETERMINATION OF THERMAL
STABILITY OF POLY(VINYL CHLORIDE),
RELATED CHLORIDE-CONTAINING
HOMOPOLYMERS AND COPOLYMERS AND
THEIR COMPOUNDS – DISCOLORATION
(ISO 305 : 1990, IDT)
This Malaysian 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 ex- posed, in the form of sheet, to elevated temperatures.
- Method A: Oil-bath method
- Method B: Oven method
