Published
This European Standard specifies a method for the determination of nitrate and ammoniacal nitrogen with reduction according to Ulsch.
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.
PUBLISHED
SRPS EN 15558:2009
90.93
Standard confirmed
Feb 5, 2025
МИНИСТАРСТВО ПОЉОПРИВРЕДЕ И ЗАШТИТЕ ЖИВОТНЕ СРЕДИНЕ