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EN ISO 182-4:2000

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 (ISO 182-4:1993)

Publication date:   Aug 10, 2006

General information

60.60 Standard published   Sep 20, 2000

CEN

CEN/TC 249 Plastics

European Norm

83.080   Plastics

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Scope

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.

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PUBLISHED
EN ISO 182-4:2000
60.60 Standard published
Sep 20, 2000

Relations

Adopted from ISO 182-4:1993 IDENTICAL