Back

CEN/TS 17790:2022

Organo-mineral fertilizers - Determination of the chelated micronutrient content and the chelated fraction of micronutrients by treatment with a cation exchange resin

General information
Valid from 18.04.2022
Base Documents
CEN/TS 17790:2022
Directives or regulations
None
Standard history
Status
Date
Type
Name
18.04.2022
Main
This document specifies a method for the determination of the chelated micronutrient content and the chelated fraction of a micronutrient, in organo-mineral fertilizers, having an organic matrix based on vegetal residues (cocoa shells, grape residue, soybean residue, etc), algae extract, and animal meal (feather, bones, blood, etc) and containing UVCB, EDDHA, EDDHMA, HBED, EDDHSA micronutrients by the treatment with a cation exchange resin. The limit of determination of the chelated micronutrient 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).
*
*
*
PDF
10.46 € incl tax
Paper
10.46 € incl tax
Browse a standard: 2.40 € incl tax
Standard monitoring