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BS EN ISO 305:2019

BS EN ISO 305:2019

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Current

The latest, up-to-date edition.

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

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

18-06-2019

Publisher

British Standards Institution

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.

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.

Committee
PRI/82
DocumentType
Standard
ISBN
9780580928673
Pages
12
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
ISO 305:2019 Identical
EN ISO 305:2019 Identical

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Hardcopy - English
PDF - English
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