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

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

Status : Current   Published : June 2019

Format
PDF

Format
HARDCOPY



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.




Standard NumberBS EN ISO 305:2019
TitlePlastics. Determination of thermal stability of poly(vinyl chloride), related chlorine-containing homopolymers and copolymers and their compounds. Discoloration method
StatusCurrent
Publication Date18 June 2019
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)ISO 293
ReplacesBS EN ISO 305:1999
International RelationshipsEN ISO 305:2019,ISO 305:2019
Draft Superseded By19/30335383 DC
DescriptorsSpecimen preparation, Polymers, Colour tests, Chlorine, Thermal stability, Temperature, Thermal resistance, Plastics, Test equipment, Copolymers, Test specimens, Polyvinyl chloride, Homopolymers, Testing conditions
ICS83.080.20
Title in FrenchPlastiques. Détermination de la stabilité thermique du poly(chlorure de vinyle), des homopolymères et copolymères chlorés apparentés et de leurs compositions. Méthode du changement de couleur
Title in GermanKunststoffe. Bestimmung der Thermostabilität von Polyvinylchlorid (PVC), verwandten chlorhaltigen Homopolymeren und Copolymeren und ihren Formmassen. Verfärbungsverfahren
CommitteePRI/82
ISBN978 0 580 92867 3
PublisherBSI
FormatA4
DeliveryYes
Pages14
File Size450 KB
Price£110.00


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