Black oxide coatings on ferrous metal components - Requirements and test methods
Edition 2018-01

Ferromanganese and ferrosilicomanganese; determination of manganese content; potentiometric method (ISO 4159, 1st edition: 1978.12.15); german version EN 24159:1989
Edition 1990-04

Fertilizers - Extraction of total sulfur present in various forms; German version EN 15925:2011
Edition 2011-12

Fertilizers - Determination of the fineness of grinding of soft natural phosphates; German version EN 15924:2011
Edition 2011-12

Fertilizers - Extraction of water soluble sulfur where the sulfur is in various forms; German version EN 15926:2011
Edition 2011-12

Chemicals used for treatment of swimming pool water - Trichloroisocyanuric acid; German version EN 15032:2006+A1:2008
Edition 2008-06

German standard methods for the examination of water, waste water and sludge; bio-assays (group L); determining the tolerance of Daphnia to the toxicity of waste water by way of a dilution series (L 30)
Edition 1989-03

Water quality - Determination of the inhibitory effect of water samples on the light emission of Vibrio fischeri (Luminescent bacteria test) - Part 3: Method using freeze-dried bacteria (ISO 11348-3:2007 + Amd 1:2018); German version EN ISO 11348-3:2008 + A1:2018
Edition 2023-12

Tobacco - Determination of the content of total alkaloids as nicotine - Continuous-flow analysis method (ISO 15152:2003 + Amd.1:2012 + Amd.2:2018)
Edition 2019-10

Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method) - Part 2: Wet chemical analysis (ISO 20565-2:2008); German version EN ISO 20565-2:2008
Edition 2009-06