DIN EN 17864
Inorganic fertilizers - Determination of nitrogen content in IBDU (isobutylidenediurea) and CDU (crotonylidenediurea); German version EN 17864:2023
Anorganische Düngemittel - Bestimmung des Stickstoffgehalts in IBDU (Isobutylidendiharnstoff) und CDU (Crotonylidendiharnstoff); Deutsche Fassung EN 17864:2023
Overview
This document specifies a method for the determination of nitrogen content in IBDU (isobutylidenediurea) and CDU (crotonylidenediurea) using high-performance liquid chromatography (HPLC). The method is applicable to all fertilizers which do not contain interfering organic compounds. This document has been prepared in Working Group WG 7 "Inorganic fertilizers and inhibitors" of Technical Committee 260 "Fertilizers and lime fertilizers" within the scope of the European Commission's standardization request M/564 and its amendments. NA 057-03-02 AA "Düngemittel" ("Fertilizers") at DIN Standards Committee Food and Agricultural Products (NAL) is responsible for this document.
