EN 13368-1:2014 Fertilizers - Determination of chelating agents in fertilizers by chromatography - Part 1: Determination of EDTA@ HEEDTA and DTPA by ion chromatography
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 %.
EN 13368-1:2014 Referenced Document
EN 12944-1:1999 Fertilizers and Liming Materials - Vocabulary - Part 1: General Terms
EN 12944-2:1999 Fertilizers and Liming Materials - Vocabulary - Part 2: Terms Relating to Fertilizers
EN 1482-2:2007 Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation
EN ISO 3696:1995 Water for Analytical Laboratory Use- Specification and Test Methods (ISO 3696 : 1987)
EN 13368-1:2014 history
2014EN 13368-1:2014 Fertilizers - Determination of chelating agents in fertilizers by chromatography - Part 1: Determination of EDTA@ HEEDTA and DTPA by ion chromatography
2001EN 13368-1:2001 Fertilizers - Determination of Chelating Agents in Fertilizers by Ion Chromatography - Part 1: EDTA, HEDTA and DTPA