ISO 2516:1973
w
ISO 2516:1973
7450

Abstract 

The principle of the analysis consists in acidification of a test solution by addition of an excess of standard volumetric sulphuric acid solution and back-titration with standard volumetric sodium hydroxide solution in the presence of methyl red- methylene blue mixed indicator.


General information 

  •  :  Withdrawn
     : 1973-04
  •  : 1
     : 1
  •  : ISO/TC 47 Chemistry
  •  :
    67.220.20 Food additives
    71.060.50 Salts

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