DIN Standards Committee Food and Agricultural Products
Inorganic fertilizers - Determination of pH of a solution of ammonium nitrate fertilizers of high nitrogen content
Abstract
This document specifies a method for the determination of pH of a solution of ammonium nitrate fertilizer of high nitrogen content. This document is applicable to the fertilizing products blends where a 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 fertilizer 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. 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
2025-11-18
WI
00260304
Planned document number
prEN 17759
Responsible national committee
Responsible european committee
CEN/TC 260/WG 7 - Inorganic fertilizers and inhibitors
