Reference number
ISO 787-9:1981
ISO 787-9:1981
General methods of test for pigments and extenders — Part 9: Determination of pH value of an aqueous suspension
Edition 1
1981-09
Retirada
ISO 787-9:1981
5084
Retirada (Edición 1, 1981)

Resumen

The water used shall be freshly distilled water, boiled before use, but for 5 to 10 min only, in order to avoid an increase of its pH value due to alkali dissolved from the glass. Preparation of a suspension of the material under test, stopper the container, shaking, allow to stand any time, removing the stopper and determination, to the nearest 0.1 unit, of the pH value of the suspension. - Cancels and replaces ISO Recommendation R 787/9-1970.

Informaciones generales

  •  : Retirada
     : 1981-09
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 2
  • ISO/TC 256
    87.060.10 
  • RSS actualizaciones

Ciclo de vida

¿Tiene alguna duda?

Consulte nuestras Ayuda y asistencia