This standard BS EN 15559:2009 Fertilizers. Determination of nitric and ammoniacal nitrogen according to Arnd is classified in these ICS categories:
65.080 Fertilizers
This European Standard 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.
