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dnaSRPS CEN/TS 17786-1:2021

Inorganic micronutrient fertilizers - Determination of the chelated micronutrient content and the chelated fraction of micronutrients - Part 1: Treatment with a cation exchange resin

General information

50.60     Dec 20, 2021



Technical Specification



This document specifies a method for the determination of the chelated iron content and the chelated fraction of iron, in UVCB chelats, EDDHA, EDDHMA, HBED, EDDHSA, in inorganic micronutrient fertilizers by the treatment with a cation exchange resin.
The limit of determination of the chelated iron content highly depends on the specific electrical conductivity of the sample, on the amount of nutrient present, and varies between 0,005 % in simple matrices with high amounts of micronutrient and 0,5 % in more complex cases (see 9.1).

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Life cycle


dnaSRPS CEN/TS 17786-1:2021
50.60 Close of voting. Proof returned by secretariat
Dec 20, 2021

Related project

Adopted from CEN/TS 17786-1:2022