EN ISO 1264:1997

Plastics - Homopolymer and copolymer resins of vinyl chloride - Determination of pH of aqueous extract (ISO 1264:1980)

Publication date:   Mar 30, 2004

General information

60.60 Standard published   Jul 23, 1997

CEN

CEN/TC 249 Plastics

European Norm

83.080.20   Thermoplastic materials

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Scope

Treatment of a test portion of resin with a given volume of an aqueous solution of sodium chloride previous neutralized to pH 7,0. After stirring and decanting, measurement of the potential difference existing between a glass electrode and a reference calomel electrode immersed in the liquid maintained at 23 °C and reading of this difference, expressed in pH units directly on th pH meter scale.

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PUBLISHED
EN ISO 1264:1997
60.60 Standard published
Jul 23, 1997

Relations

Adopted from ISO 1264:1980 IDENTICAL