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AACC International Approved Methods - AACC Method 46-10.01. Crude Protein -- Improved Kjeldahl Method (ARCHIVED)

AACC International Approved Methods

Nitrogen

AACCI Method 46-10.01 (ARCHIVED)
Crude Protein -- Improved Kjeldahl Method

VIEW METHOD

Objective
This modified Kjeldahl method determines total nitrogen in nitrate-containing materials and animal feeds. The sample is digested in sulfuric acid; ammonia is distilled; and excess acid is titrated. A conversion factor of 6.25 is used for feedstuffs.