EN 13368-1:2014

Fertilizers - Determination of chelating agents in fertilizers by chromatography - Part 1: Determination of EDTA, HEEDTA and DTPA by ion chromatography

Publication date:   Mar 17, 2014

General information

90.93 Standard confirmed   Dec 9, 2019


CEN/TC 260 Fertilizers and liming materials

European Norm

65.080   Fertilizers



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This European Standard specifies a method for the chromatographic determination of the total amount of each of the individual chelating agents EDTA, HEEDTA, and DTPA in fertilizers containing one or more of these substances. The method allows the identification and the determination of the total water soluble fraction of each of these chelating agents. It does not allow to distinguish between the free form and the metal bound form of the chelating agents.
NOTE EDTA, HEEDTA and DTPA are abbreviations used in this European Standard for the sake of simplicity. For complete names see Annex A.
This method applies to fertilizers containing chelates of one or more of the following micro-nutrients: cobalt, copper, iron, manganese, zinc and with a mass fraction of at least 0,1 %.

Life cycle


EN 13368-1:2001


EN 13368-1:2014
90.93 Standard confirmed
Dec 9, 2019