NF EN 15475

Fertilizers - Determination of ammoniacal nitrogen

Le présent document spécifie une méthode permettant de doser la teneur en azote ammoniacal dans les engrais. Il s'applique à tous les engrais azotés à l'exception des engrais contenant de l'urée, de la cyanamide ou d'autres composés organiques azotés.

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