PD CEN/TS 17786-1:2022

This standard PD CEN/TS 17786-1:2022 Inorganic micronutrient fertilizers. Determination of the chelated micronutrient content and the chelated fraction of micronutrients is classified in these ICS categories:

• 65.080 Fertilizers

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).