NF EN 13654-1
NF EN 13654-1

NF EN 13654-1

September 2001
Standard Current

Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method

Le présent document décrit une méthode pour la détermination de l''azote dans les amendements du sol et les supports de culture. La méthode de Kjeldahl détermine la teneur en N-ammonium, N-nitrate, N-nitrite et N-organique des amendements du sol et des supports de culture. L''azote contenu dans les liaisons N-N, N-O et certains hétérocycliques (en particulier la pyridine) n''est déterminé que partiellement. Cette méthode ne s''applique pas aux amendements calciques ni aux matériaux préformés tels que la laine de roche et les mousses.

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Main informations

Collections

National standards and national normative documents

Publication date

September 2001

Number of pages

13 p.

Reference

NF EN 13654-1

ICS Codes

65.080   Fertilizers

European kinship

EN 13654-1:2001
Sumary
Soil improvers and growing media - Determination of nitrogen - Part 1: Modified Kjeldahl method

Le présent document décrit une méthode pour la détermination de l''azote dans les amendements du sol et les supports de culture. La méthode de Kjeldahl détermine la teneur en N-ammonium, N-nitrate, N-nitrite et N-organique des amendements du sol et des supports de culture. L''azote contenu dans les liaisons N-N, N-O et certains hétérocycliques (en particulier la pyridine) n''est déterminé que partiellement. Cette méthode ne s''applique pas aux amendements calciques ni aux matériaux préformés tels que la laine de roche et les mousses.
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