International Standard
ISO 182-4:1993
Plastics — Determination of the tendency of compounds and products based on vinyl chloride homopolymers and copolymers to evolve hydrogen chloride and any other acidic products at elevated temperatures — Part 4: Potentiometric method
Reference number
ISO 182-4:1993
Edition 1
1993-04
© ISO 2024
International Standard
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Published (Edition 1, 1993)
This standard was last reviewed and confirmed in 2020. Therefore this version remains current.

ISO 182-4:1993

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CHF 96
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Abstract

The principle of the method is maintaining a test portion of the PVC at an agreed temperature in a nitrogen gas stream, absorbing the hydrogen chloride evolved in a given amount of an appropriate solution, and potentiometrically determining the amount of hydrogen chloride evolved in relation to the recorded change in pCl of the absorbing solution. The method is recommended for compounded PVC materials and products only, although it can be used for polymers in powder form under appropriate conditions.

General information

  • Status
     : Published
    Publication date
     : 1993-04
    Stage
    : International Standard confirmed [90.93]
  • Edition
     : 1
    Number of pages
     : 14
  • Technical Committee :
    ISO/TC 61/SC 9
    ICS :
    83.080.20 
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