Fertilizers - Determination of complexing agents in fertilizers - Identification of heptagluconic acid by chromatography; German version EN 16847:2016— 20 стр.
Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method (ISO 5725-2:1994 including Technical Corrigendum 1:2002)— 97 стр.
Fertilizers - Determination of the complexed micro-nutrient content and of the complexed fraction of micro-nutrients; German version EN 15962:2011— 16 стр.
Fertilizers - Determination of complexing agents in fertilizers - Identification of heptagluconic acid by chromatography; German version prEN 16847:2015
