ISO 7099:1983
w
ISO 7099:1983
13684

Abstract 

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 

  •  :  Withdrawn
     : 1983-10
  •  : 1
     : 4
  •  : ISO/TC 47 Chemistry
  •  :
    67.220.20 Food additives
    71.060.30 Acids

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