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.
Status: PublishedPublication date: 1980-11
Edition: 1Number of pages: 2
Technical Committee: ISO/TC 61/SC 9 Thermoplastic materials
Buy this standard
|std 1 38|
|std 2 38||Paper|