NF ISO 14869-1

Soil quality - Dissolution for the determination of total element contents - Part 1: dissolution with hydrofluoric and perchloric acids

La présente partie de l'ISO 14869 spécifie une méthode de mise en solution totale, par l'acide fluorhydrique et l'acide perchlorique, des éléments suivants dans les sols: AI, Ba, Cd, Ca, Cs, Cr, Co, Cu, Fe, K, Li, Mg, Mn, Na, Ni, P, Pb, Sr, V et Zn. Le présent mode opératoire peut aussi être utilisé pour doser ultérieurement d'autres éléments, sous réserve que leur concentration soit suffisante par rapport à la sensibilité des méthodes de mesurage. La faible concentration d'acide dans la solution finale permet d'utiliser un large éventail d'instruments de dosage et l'évaporation du silicium simplifie les méthodes d'analyse.

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