Fertilizers - Determination of different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen— 25 стр.
Fertilizers - Determination of cobalt, copper, iron, manganese and zinc using flame atomic absorption spectrometry (FAAS); German version EN 16965:2018— 24 стр.
Fertilizers - Determination of chelating agents - Determination of iron chelated by EDDHSA by ion pair chromatography; German version EN 15451:2008— 17 стр.
Fertilizers - Determination of urease inhibitor N-(n-butyl)thiophosphoric triamide (NBPT) using high-performance liquid chromatography (HPLC); German version EN 15688:2008— 12 стр.
Fertilizers - Determination of N-(n-Butyl)thiophosphoric acid triamide (NBPT) and N-(n-Propyl)thiophosphoric acid triamide (NPPT) - Method using high-performance liquid chromatography (HPLC); German version EN 16651:2015— 14 стр.
Fertilizers - Determination of 3,4-dimethyl-1H-pyrazole phosphate (DMPP) - Method using high-performance liquid chromatography (HPLC); German version EN 16328:2012— 11 стр.
Fertilizers - Determination of chelating agents - Determination of iron chelated by o,p- EDDHA by reversed phase HPLC; German version EN 15452:2008— 15 стр.
