DIN Standards Committee Food and Agricultural Products
Organo-mineral fertilizers - Determination of the N-(n-butyl)thiophosphoric triamide (NBPT) urease inhibitor content; German and English version prEN 18317:2026
Abstract
This document specifies a method for the determination of the urease inhibitor N-(n-butyl)thiophosphoric triamide (NBPT) and its oxidate form N-(n-butyl)phosphoric triamide (NBPTO) in urea based organo-mineral fertilizers, using the liquid chromatography coupled with triple quadrupole mass spectrometry (LC-MSQQQ). This document is applicable to organo-mineral fertilizers. NOTE It is possible to apply this method to inorganic fertilizers; in this case a validation is carried out by the laboratory for the procedure and data generated.
Begin
2025-11-24
WI
00260273
Planned document number
DIN EN 18317
Project number
05702493
Responsible national committee
Responsible european committee
CEN/TC 260/WG 7 - Inorganic fertilizers and inhibitors
draft standard
Organo-mineral fertilizers - Determination of the N-(n-butyl)thiophosphoric triamide (NBPT) urease inhibitor content; German and English version prEN 18317:2026
2026-03
Order from DIN Media
