Fertilizers - Determination of 1H-1,2,4-triazole in urea and in fertilizers containing urea - Method using high-performance liquid chromatography (HPLC); German version EN 16024:2011— 12 стр.
Fertilizers and liming materials - Determination of mercury by vapour generation (VG) after aqua regia dissolution; German version EN 16320:2013+A1:2017— 18 стр.
Liming materials - Determination of the breakdown of granulated calcium and calcium/magnesium carbonates under the influence of water; German version EN 15704:2008— 10 стр.
Soil improvers and growing media - Determination of the aerobic biological activity - Part 1: Oxygen uptake rate (OUR); German version EN 16087-1:2020— 15 стр.
Fertilizers - Determination of N-(1,2-dicarboxyethyl)-D,L-aspartic acid (Iminodisuccinic acid, IDHA) using high-performance liquid chromatography (HPLC); German version EN 15950:2010— 17 стр.
Fertilizers - Extraction of total calcium, total magnesium, total sodium and total sulfur in the forms of sulfates; German version EN 15960:2011— 8 стр.
Fertilizers - Determination of complexing agents in fertilizers - Identification of heptagluconic acid by chromatography; German version EN 16847:2016— 20 стр.
Fertilizers - Determination of urea condensates using high-performance liquid chromatography (HPLC) - Isobutylidenediurea and crotonylidenediurea (method A) and methylene-urea oligomers (method B); German version EN 15705:2010— 24 стр.
