Fertilizers - Determination of 3-methylpyrazole (MP) using high-performance liquid chromatography (HPLC); German version EN 15905:2010
Edition 2010-11

Fertilizers - Determination of the water-soluble potassium content; German version EN 15477:2009
Edition 2009-04

Fertilizers - Determination of molybdenum in concentrations ≤ 10 % using spectrometry of a complex with ammonium thiocyanate; German version EN 17043:2018
Edition 2018-08

Soil quality - Determination of effective cation exchange capacity and base saturation level using barium chloride solution (ISO 11260:2018); German version EN ISO 11260:2018
Edition 2018-11

German standard methods for the examination of water, waste water and sludge; cations (group E); determination of dissolved silver by atomic absorption spectrometry using electrothermal atomization (E 18)
Edition 1990-05

German standard methods for the examination of water, waste water and sludge; gaseous components (group G); determination of chlorine dioxide (G 5)
Edition 1990-06

German standard methods for the examination of water, waste water and sludge; bio-assays (group L); determining the tolerance of green algae to the toxicity of waste water (Scenedesmus chlorophyll fluorescence test) by way of dilution series (L 33)
Edition 1991-03

Foodstuffs - Determination of melamine and cyanuric acid in foodstuffs by liquid chromatography and tandem mass spectrometry (LC-MS/MS); German version EN 16858:2017
Edition 2017-08

German standard methods for the examination of water, waste water and sludge - Anions (Group D) - Part 23: Determination of selenium by atomic absorption spectrometry (D 23)
Edition 1994-10

Coffee and coffee products - Determination of the caffeine content using high performance liquid chromatography (HPLC) - Reference method (ISO 20481:2008)
Edition 2011-01