International Standard
ISO 6844:1983
Surface active agents — Determination of mineral sulfate content — Titrimetric method
Reference number
ISO 6844:1983
Edición 1
International Standard
Vista previa
ISO 6844:1983
No disponible en español
Publicado (Edición 1, 1983)
Esta norma se revisó y confirmó por última vez en 2019. Por lo tanto, esta versión es la actual.

ISO 6844:1983

ISO 6844:1983
CHF 42
Convertir Franco suizo (CHF) a tu moneda


A buffered acetonic solution of a test portion is titrated with a standard volumetric lead(II) nitrate solution in the presence of dithizone as indicator. The method is applicable to anionic surface active agents, containing sodium, ammonium and alkanolamine sulphates. It is not applicable to products containing other compounds such as phosphates or large amounts of chloride nor is it applicable in the presence of large amounts of salts of weak acids (for example, soaps or monoesters of sulphosuccinic acid).

Informaciones generales

  •  : Publicado
     : 1983-02
    : Norma Internacional en proceso de revisión sistemática [90.20]
  •  : 1
     : 3
  • ISO/TC 91
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