DIN EN ISO 15604
Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen (ISO 15604:2016); German and English version prEN ISO 15604:2019
Düngemittel - Bestimmung verschiedener, nebeneinander anwesender Stickstoff-Formen in derselben Probe mit Stickstoff in Form von Ammonium, Nitrat, Harnstoff und Cyanamid (ISO 15604:2016); Deutsche und Englische Fassung prEN ISO 15604:2019
Responsible national committee
Responsible european committee
CEN/TC 260/WG 7 - Inorganic fertilizers and inhibitors
Responsible international committee
ISO/TC 134 - Fertilizers, soil conditioners and beneficial substances