ISO 1871:1975
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ISO 1871:1975
6542

Abstract

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 

  •  :  Withdrawn
     : 1975-12
  •  : 1
     : 5
  •  : ISO/TC 34 Food products
  •  :
    67.050 General methods of tests and analysis for food products

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