DIN EN 13368-2:2018-03
Fertilizers - Determination of chelating agents in fertilizers by chromatography - Part 2: Determination of Fe chelated by [o,o] EDDHA, [o,o] EDDHMA and HBED, or the amount of chelating agents, by ion pair chromatography; German version EN 13368-2:2017
| Fecha edición: |
2018-03-01
En Vigor
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| Idiomas disponibles: | Inglés, Alemán |
| Resumen: | This document specifies a method for the chromatographic determination of the iron chelated by each individual ortho(hydroxy)-ortho(hydroxy) isomer of the chelating agents [o,o] EDDHA, [o,o] EDDHMA and by HBED in fertilizers containing one or more of these substances, except for [o,o] EDDHMA and HBED mixes. The method allows the identification and the determination of the total concentration of water soluble iron chelates of these chelating agents. Also, after derivatization with Fe, the soluble amount of the chelating agents may be determined when other micro-nutrients, beside Fe are present in fertilizers containing [o,o] EDDHA, [o,o] EDDHMA or HBED. This method is applicable to EC fertilizers covered by Regulation (EC) No 2003/2003. It is applicable to a mass fraction of the metal chelated of at least 0,625 %. |
| Keywords: | Chelating agents|Chelatization|Chemical analysis and testing|Chromatography|Cobalt|Copper|Determination|Determination of content|Determination procedures|Fertilizers|Inter-laboratory tests|Ion-exchange chromatography|Iron|Laboratory ware|Manganese|Soil improving materials|Testing|Zinc |
| ICS: | 65.080 - Fertilizantes |
| CTN: | |
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Equivalencia Internacional |
Idéntica EN 13368-2:2017 |
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Reemplazo Normas |
Reemplaza a DIN EN 13368-2:2012-10 Reemplaza a DIN EN 13368-2:2016-07 |
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