Engrais, amendements et substances bénéfiques – Détermination de la teneur en phosphore et potassium solubles dans le citrate d’ammonium et l’EDTA disodique par ICP-OES dans les engrais inorganiques

This document specifies an inductively coupled plasma-optical emission spectrometer (ICP-OES) method for the determination of the ammonium citrate, disodium-etheylenediamine tetraacetic acid (EDTA) soluble phosphorus and potassium content in fertilizer extract solutions.

This document is applicable to all inorganic fertilizer products, whether compound or complex fertilizer products or blends thereof, and straight concentrated fertilizer products.