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
Retirada
ISO 1871:1975
6542
Retirada (Edición 1, 1975)

Resumen

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.

Informaciones generales

  •  : Retirada
     : 1975-12
    : Retirada de la Norma Internacional [95.99]
  •  : 1
     : 5
  • ISO/TC 34
    67.050 
  • RSS actualizaciones

¿Tiene alguna duda?

Consulte nuestras Ayuda y asistencia