This Technical Specification specifies a method for the determination of nitric and ammoniacal nitrogen with reduction according to Arnd (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.
BS DD CEN/TS 15559:2007 history
2009BS EN 15559:2009 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd
2007BS DD CEN/TS 15559:2007 Fertilizers - Determination of nitric and ammoniacal nitrogen according to Arnd