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ISO 1871:1975

Agricultural food products — General directions for the determination of nitrogen by the Kjeldahl method ISO 1871:1975

Publication date:   Dec 1, 1975

95.99 Withdrawal of Standard   Aug 14, 2009

General information

95.99 Withdrawal of Standard   Aug 14, 2009

ISO

ISO/TC 34 Food products

International Standard

67.050   General methods of tests and analysis for food products

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Scope

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.

Life cycle

NOW

WITHDRAWN
ISO 1871:1975
95.99 Withdrawal of Standard
Aug 14, 2009

REVISED BY

PUBLISHED
ISO 1871:2009