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.

General information

  • Status :  Withdrawn
    Publication date : 1990-04
  • Edition : 2
    Number of pages : 4
  • :
    ISO/TC 61/SC 9
    Thermoplastic materials
  • 83.080.20
    Thermoplastic materials

Life cycle

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