prSRPS EN 17785:2026

Fertilizers - Determination of chelating and complexing agents

Scope

This document specifies the references to the methods for the determination of the chelated and/or complexed fraction and the chelating and/or complexing agents of inorganic and organo-mineral fertilizers containing micronutrient chelates and/or complexes.
Fertilizers containing micronutrient materials for this purpose are micronutrient chelates or complexes and mixtures of them, in powder or granular form, aqueous or suspension preparations.
This document is applicable to fertilizing product blends, where the blend is a mix of at least two of the following components: fertilizers, liming materials, soil improvers, growing media, inhibitors, plant biostimulants, and where the following category: inorganic fertilizers or organo-mineral fertilizers is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass.
This document is not applicable to fertilizers containing any substance not considered chelating or complexing agent, combining with a micronutrient to form a stable compound at the specific working pH.

Related directives

NOTE: If the word "harmonized" (marked in green) is not found in the field with the name of the directive, it means that the European standard is not cited in the OJEU.