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EN ISO 305:1999

Plastics - Determination of thermal stability of poly(vinyl chloride), related chlorine-containing homopolymers and copolymers and their compounds - Discoloration method (ISO 305:1990) EN ISO 305:1999

Publication date:   Mar 19, 2004

General information

99.60 Withdrawal effective   Jun 12, 2019

CEN

CEN/TC 249 Plastics

European Norm

83.080.01   Plastics in general

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Scope

Specification of a comparing method, based on the increasing discoloration of polyvinylchloride when exposed to heat, due to a decomposition reaction. Test pieces in diskform are placed between aluminium pieces and heated to the specified test temperature. After specified periods one test specimen at a time is taken out and the degree of discoloration assessed by visual examination or by measuring with a photometer.

Life cycle

NOW

WITHDRAWN
EN ISO 305:1999
99.60 Withdrawal effective
Jun 12, 2019

REVISED BY

PUBLISHED
EN ISO 305:2019

Relations

Adopted from ISO 305:1990 IDENTICAL