The principle consists in a comparison of the turbidity, obtained by the addition of barium chloride to a solution prepared from a test portion in the presence of hydrochloric acid, with that similarly obtained from a standard sulphate solution. The method is a applicable to products having inorganic sulphates contents, expressed as sulphate (SO42-), in the range 0,001 to 0,1 % (m/m).

General information

  • Status :  Withdrawn
    Publication date : 1977-02
  • Edition : 1
    Number of pages : 2
  • :
    ISO/TC 47
  • 71.080.40
    Organic acids

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