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ČSN EN ISO 305 (643208)
Plastics - Determination of thermal stability of poly(vinyl chloride), related chlorine-containing homopolymers and copolymers and their compounds - Discoloration method
Translate name
STANDARD published on 1.12.2019
The information about the standard:
Designation standards: ČSN EN ISO 305
Classification mark: 643208
Catalog number: 508419
Publication date standards: 1.12.2019
SKU: NS-977091
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Annotation of standard text ČSN EN ISO 305 (643208):
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
Preview of the standard ČSN EN ISO 305 (643208)
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