NEN - NPR-CEN/TS 15476
Fertilizers - Determination of nitric and ammoniacal nitrogen according to Devarda
|Publication Date:||1 October 2006|
|ICS Code (Fertilizers):||65.080|
This Technical Specification specifies a method for the determination of nitrate and ammoniacal nitrogen with reduction using Devarda alloy (modified for each of the variants a, b and c). The method is applicable to all nitrogenous fertilizers, including compound fertilizers, in which nitrogen is found exclusively in nitrate form or in ammoniacal and nitrate form.