ISO 1871:1975
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Agricultural food products General directions for the determination of nitrogen by the Kjeldahl method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
09-12-2018
English, French
12-01-1975
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.
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