DIN Standards Committee Food and Agricultural Products
Inorganic fertilizers - Titrimetric determination of ammoniacal nitrogen; German and English version FprEN 15475:2026
Abstract
This document specifies a method for the titrimetric determination of the ammoniacal nitrogen content in inorganic fertilizers (including compound fertilizers), in which nitrogen is found exclusively either in the form of ammonium salts or ammonium salts together with nitrates. 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 is the highest % in the blend by mass or volume, or in the case of liquid form by dry mass. If inorganic fertilizers are 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. This document is not applicable to fertilizers containing urea, cyanamide, nutrient polymers or other organic nitrogenous compounds.
Begin
2025-07-22
WI
00260345
Planned document number
DIN EN 15475
Project number
05702828
Responsible national committee
Responsible european committee
CEN/TC 260/WG 7 - Inorganic fertilizers and inhibitors
draft standard
Inorganic fertilizers - Titrimetric determination of ammoniacal nitrogen; German and English version prEN 15475:2025
2026-01
Order from DIN Media
previous edition(s)
Fertilizers - Determination of ammoniacal nitrogen; German version EN 15475:2009
2009-04
