DS EN 15452:2008
DS EN 15452:2008 Fertilizers - Determination Of Chelating Agents - Determination Of Iron Chelated By O,P-Eddha By Reversed Phase Hplc Describes a method for the chromatographic determination of the amount of iron chelated by each of the individual isomers of the chelating agent ortho para EDDHA (o,p-EDDHA) in fertilizers.