90.93 Standard confirmed Jun 13, 2020
ISO
ISO/TC 61/SC 9 Thermoplastic materials
International Standard
83.080.20 Thermoplastic materials
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.
PUBLISHED
ISO 1264:1980
90.93
Standard confirmed
Jun 13, 2020
ABANDON
ISO/WD 1264