Resumen
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.
Informaciones generales
-
Estado: PublicadoFecha de publicación: 1980-11Etapa: Norma Internacional confirmada [90.93]
-
Edición: 1Número de páginas: 2
-
Comité Técnico :ISO/TC 61/SC 9ICS :83.080.20
- RSS actualizaciones