Reference number
ISO 1871:1975
ISO 1871:1975
Agricultural food products — General directions for the determination of nitrogen by the Kjeldahl method
Edition 1
1975-12
Withdrawn
ISO 1871:1975
6542
Withdrawn (Edition 1, 1975)

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  •  : Withdrawn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
    : Withdrawal of International Standard [95.99]
  •  : 1
     : 5
  • ISO/TC 34
    67.050 
  • RSS updates

Got a question?

Check out our Help and Support