Soil quality - Determination of mineral nitrogen (nitrat and ammonium) in soil profiles (Nmin laboratory method)
Edition 2005-06

German standard methods for the examination of water, waste water and sludge; cations (group E); determination of ammonia-nitrogen (E 5)
Edition 1983-10

Testing of materials for semiconductor technology - Determination of traces of elements in liquids - Part 6: Determination of 36 elements in a high-purity ammonium fluoride solution (NH₄F) and in etching mixtures of high-purity ammonium fluoride solution containing hydrofluoric acid
Edition 2014-11

Chemicals used for treatment of water intended for human consumption - Ammonium chloride; German version EN 1421:2022
Edition 2022-12

Chemicals used for treatment of water intended for human consumption - Ammonium sulfate; German version EN 12123:2022
Edition 2022-10

Surface active agents - Determination of quaternary ammonium surface active agents in raw materials and formulated products - Potentiometric two-phase titration method; German version EN 14668:2005
Edition 2005-09

Surface active agents - Determination of quaternary ammonium surface active agents in raw materials and formulated products - Potentiometric two-phase titration method; German version EN 14668:2005, Corrigenda to DIN EN 14668:2005-09; German version EN 14668:2005/AC:2006
Edition 2006-08

Characterization of sludges - Pre-treatment for the determination of extractable ammonia using 2 mol/l potassium chloride; German version EN 14671:2006
Edition 2006-09

Surface active agents - Determination of hydroxyl value - p-Toluensulfonyl isocyanate (TSI) method and potentiometric titration with tetrabutylammonium hydroxide; German version EN 15168:2006
Edition 2007-02

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