Infant formula and adult nutritionals - Determination of fructans - High performance anion exchange chromatography with pulsed amperometric detection (HPAEC-PAD) after enzymatic treatment (ISO 22579:2020); German version EN ISO 22579:2021
Edition 2021-08

Chemicals used for treatment of water intended for human consumption - Hydrochloric acid; German version EN 939:2016
Edition 2016-09

Fertilizers - Determination of ammoniacal nitrogen; German version EN 15475:2009
Edition 2009-04

Fertilizers - Determination of boron in concentrations > 10 % using acidimetric titration; German version EN 17042:2018
Edition 2018-08

Fertilizers - Determination of chelating agents - Determination of iron chelated by EDDHSA by ion pair chromatography; German version EN 15451:2008
Edition 2008-11

Inorganic fertilizers - Determination of methylen-urea oligomers using high-performance liquid chromatography (HPLC); German version EN 15705:2023
Edition 2024-04

German standard methods for the examination of water, waste water and sludge; cations (group E); determination of sodium by atomic absorption spectrometry (ASS) using an air-acetylene flame (E 14)
Edition 1992-07

Fertilizers - Extraction of phosphorus which is soluble in neutral ammonium citrate; German version EN 15957:2011
Edition 2011-12

Plastics - Polyamides - Determination of ε-caprolactam and ω-laurolactam by gas chromatography (ISO 11337:2023); German version EN ISO 11337:2023
Edition 2023-10

Fertilizers - Determination of total nitrogen in urea; German version EN 15478:2009
Edition 2009-04