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BSI BS EN ISO 305:2019

Plastics. Determination of thermal stability of poly(vinyl chloride), related chlorine-containing homopolymers and copolymers and their compounds. Discoloration method
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BSI BS EN ISO 305:2019

Plastics. Determination of thermal stability of poly(vinyl chloride), related chlorine-containing homopolymers and copolymers and their compounds. Discoloration method

PUBLISH DATE 2019
PAGES 14
BSI BS EN ISO 305:2019

This document 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. The two methods are:

  • Method A: Oil-bath method;

  • Method B: Oven method.

These methods are particularly applicable to the determination of the resistance of PVC to degradation by heat, as assessed by the change in colour after different times of heating under standardized conditions. The results are comparative only, and can be unsatisfactory when coloured PVC materials are tested.

The stability times given by the two methods might not be similar and cannot be used for direct-comparison purposes.

SDO BSI: British Standards Institution
Document Number ISO 305
Publication Date June 18, 2019
Language en - English
Page Count 14
Revision Level
Supercedes
Committee PRI/82
Publish Date Document Id Type View
June 18, 2019 BS EN ISO 305:2019 Revision
Sept. 15, 1999 BS EN ISO 305:1999 Revision