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  • BSI
    PD CEN/TS 17764:2022 Inorganic micronutrient fertilizers. Determination of the concentration of free, chelated or complexed micronutrients and the chelating and/or complexing agents present in compound inorganic micronutrient fertilizers
    Edition: 2022
    $313.97
    / user per year

Description of PD CEN/TS 17764:2022 2022

This document specifies the method for the determination of free, chelated or complexed micronutrients and chelating and/or complexing agents present in compound inorganic micronutrient fertilizers. This method applies to compound inorganic micronutrient fertilizers when micronutrients are chelated and/or complexed. The method is based on the determination of the following specific parameters : - the water-soluble micronutrient concentration; - the fraction of chelated micronutrients in relation; - identification of chelating agents EDTA, DTPA, HEEDTA, IDHA, [S,S]–EDDS, [o,o] EDDHA, [o,o] EDDHMA, [o,p] EDDHA, HBED and EDDHSA; - the fraction of complexed micronutrients; - identification of complexing agents (lignosulfonates, heptagluconic acid (HGA)). The method is based on - ICP (inductive coupled plasma) or FAAS (flame atomic absorption spectrometry) measurement of the concentration of water-soluble micronutrients according to EN 16963 or EN 16965 after extraction according to EN 16962; - LC (liquid chromatography) measurement of the chelating agents according to EN 15950, EN 13368-1, EN 13368-2, EN 13368-3, EN 15451, EN 15452; and/or complexing agents according to EN 16109 and EN 16847; - determination of the concentration of chelated micronutrients by CEN/TS 17786-1 and/or CEN/TS 17786-2; - determination of the complexed micronutrients by EN 15962. To avoid duplication of the analytical methods, CEN/TS 17786-2 describes the determination of micronutrients and the identification and determination of chelating agents.

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.

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