ISO 11261:1995Published

Soil quality — Determination of total nitrogen — Modified Kjeldahl method

Qualité du sol — Dosage de l'azote total — Méthode de Kjeldahl modifiée

Abstract / scope

Specifies a method for the determination of the total nitrogen (ammonium-N, nitrate-N, nitrite-N and organic N) content of a soil. Nitrogen in N-N-linkages, N-O-linkages and some heterocyclics (especially pyridine) is only partially determined. Applicable to all types of soils.