NF U44-160

Organic soil conditioners and organic material for soil improvement. Determination of total organic matter. Calcination method.

La présente norme spécifie une méthode de détermination de la matière organique des produits visés par les normes de spécifications : NF U 44-041, NF U 44-051, NF U 44-071 et NF U 44-551. Elle révise la norme expérimentale de même indice d'avril 1976 notamment quant à son domaine d'application. Le marquage de la teneur en matière organique étant obligatoire pour les amendements organiques et supports de culture, cette norme pourra servir de référence aux organismes de contrôles officiels.

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