The hydrogen sulphide in a test portion is removed in a stream of nitrogen and absorbed in a solution of sodiumhydroxide in aqueous acetone. the sulphide ions are titrated with standard volumetric mercury(II) acetate solution, in the presence of 1,5-diphenylthiocarbazone (dithizone) as indicator. The method is applicable to products having hydrogen sulfide contents greater than or equal to 0.05 mg/kg.

General information

  • Status :  Withdrawn
    Publication date : 1983-10
  • Edition : 1
    Number of pages : 4
  • :
    ISO/TC 47
  • 67.220.20
    Food additives

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