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Norm
ISO 1871:1975
Issue date: 1975 12 01
Agricultural food products — General directions for the determination of nitrogen by the Kjeldahl method
Application to products containing only nitrogenous copounds which are directly determinable by the Kjeldahl method. The method consists in destructing of organic matter ...
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Withdrawn
: 2009 08 14
Publisher:
International Organization for Standardization
Format:
Digital | 5 Pages
Language:
English
Currently valid:
ICS
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.
ISO 1871:2009
2009 08 14
Food and feed products — General guidelines for the determination of nitrogen by the Kjeldahl method...
Norm
ISO 1871:1975
1975 12 01
Agricultural food products — General directions for the determination of nitrogen by the Kjeldahl me...
Norm
↖
Norm
ISO 1871:2009
Issue date :
2009 08 14
Food and feed products — General guidelines for the determination of nitrogen by the Kjeldahl method