Application to products containing only nitrogenous copounds which are directly determinable by the Kjeldahl method. The method consists in destructing of organic matter by sulphuric acid in the presence of a catalyst, rendering of the reaction product alkaline, distillation and titration of the liberated ammonia.

General information

  • Status :  Withdrawn
    Publication date : 1975-12
  • Edition : 1
    Number of pages : 5
  • :
    ISO/TC 34
    Food products
  • 67.050
    General methods of tests and analysis for food products

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