ISO 731-5:1977
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ISO 731-5:1977
4976

Abstract 

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 

  •  :  Withdrawn
     : 1977-02
  •  : 1
     : 2
  •  : ISO/TC 47 Chemistry
  •  :
    71.080.40 Organic acids

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