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Norm
ÖNORM EN ISO 305
Issue date: 2019 08 15
Plastics - Determination of thermal stability of poly(vinyl chloride), related chlorine-containing homopolymers and copolymers and their compounds - Discoloration method (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...
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Publisher:
Austrian Standards International
Format:
Digital | 11 Pages
Language:
German
| English
| Download GER/ENG
Optionally co-design standards:
ICS
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.
ÖNORM EN ISO 305
2019 08 15
Plastics - Determination of thermal stability of poly(vinyl chloride), related chlorine-containing h...
Norm
↖
ÖNORM EN ISO 305
1999 08 01
Plastics - Determination of thermal stability of poly(vinyl chloride), related chlorine-containing h...
Norm
Norm
ISO 305:2019
Issue date :
2019 05 15
Plastics — Determination of thermal stability of poly(vinyl chloride), related chlorine-containing homopolymers and copolymers and their compounds — Discoloration method