Organic and organo-mineral fertilizers - Determination of the dry matter content; German and English version FprEN 17773:2026
Abstract
This document specifies the procedure for determining and calculating the dry matter content of organic and organo-mineral fertilizers. The results of the analysis are expressed on a dry matter basis. This method is applicable and validated in an interlaboratory study for several types of matrices as indicated in Annex A, including typical organic and organo-mineral fertilizers, fertilizing product blends and the component materials "by-products", "thermal oxidation materials and derivatives", and "recovered high-purity materials" when used as component of fertilizing products. 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 organic 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. If the organic fertilizer or the organo-mineral fertilizers is not the highest % in the blend, the European Standard for the highest % of the blend applies. In case a fertilizing product blend is composed of components in equal quantity, the user decides which standard to apply. Note Variations in analytical methods for fertilizing product blends can lead to differing results as some components or matrix interactions can affect the outcome. Validation procedures have shown that developed standard methods are robust and reliable across diverse product compositions, but possible interferences and unexpected results when analysing fertilizing product blends are possible.
Begin
2025-06-10
WI
00260331
Planned document number
DIN EN 17773
Project number
05702812
Responsible national committee
Responsible european committee
CEN/TC 260/WG 8 - Organic and organo-mineral fertilizers
draft standard
Organic and organo-mineral fertilizers - Determination of the dry matter content; German and English version prEN 17773:2026
2026-02
Order from DIN Media
