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ISO 305:1990

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

Üldinfo
Kehtetu alates 15.05.2019
Tegevusala (ICS grupid)
83.080.20 Termoplastid
Direktiivid või määrused
puuduvad
Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
15.05.2019
Põhitekst
12.04.1990
Põhitekst
Põhitekst
ISO 305:1976
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.
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