Fruit and vegetable juices - Determination of sodium, potassium, calcium and magnesium content by atomic absorption spectrophotometry (AAS); German version EN 1134:1994
Edition 1994-12

Solid biofuels - Determination of the water soluble chloride, sodium and potassium content (ISO 16995:2015); German version EN ISO 16995:2015
Edition 2015-05

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

Liquid petroleum products - Determination of Sodium, Potassium, Calcium, Phosphorus, Copper and Zinc contents in diesel fuel - Method via Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES); German version EN 16476:2014
Edition 2014-07

Oilseed meals - Determination of soluble proteins in potassium hydroxide solution (ISO 14244:2014); German version EN ISO 14244:2016
Edition 2016-10

Foodstuffs - Determination of calcium, copper, iron, magnesium, manganese, phosphorus, potassium, sodium, sulfur and zinc by ICP-OES; German version EN 16943:2017
Edition 2017-07

Fat and oil derivatives - Fatty acid methylesters (FAME) - Determination of potassium content by atomic absorption spectrometry; German version EN 14109:2003
Edition 2003-10

German standard methods for the examination of water, waste water and sludge; cations (group E); determination of potassium by atomic absorption spectrometry (AAS) using an air-acetylene flame (E 13)
Edition 1992-07

Jewellery and precious metals - Determination of silver - Potentiometry using potassium bromide (ISO 11427:2024); German version EN ISO 11427:2024
Edition 2024-08

Hardmetals - Determination of calcium, copper, iron, potassium, magnesium, manganese, sodium, nickel and zinc in cobalt metal powders - Flame atomic absorption spectrometric method (ISO 11876:2010); German version EN ISO 11876:2010
Edition 2010-12