Milk and milk products - Determination of nitrate content - Method by enzymatic reduction and molecular-absorption spectrometry after Griess reaction (ISO 20541:2008); German version EN ISO 20541:2008
Edition 2008-12

Ambient air - Method for the determination of the concentration of nitrogen dioxide by diffusive sampling; German and English version prEN 16339:2023
Edition 2023-12

Water quality - Determination of selected parameters by discrete analysis systems - Part 1: Ammonium, nitrate, nitrite, chloride, orthophosphate, sulfate and silicate with photometric detection (ISO 15923-1:2013)
Edition 2014-07

Laboratory glass and plastics ware - Tubes for the measurement of the erythrocyte sedimentation rate by the Westergren method (ISO 13079:2011); German version EN ISO 13079:2011
Edition 2011-10

Ambient air - Method for the determination of the concentration of nitrogen dioxide by diffusive sampling; German version EN 16339:2013
Edition 2013-11

Foodstuffs - Determination of sulfite - Part 2: Enzymatic method; German version EN 1988-2:1998
Edition 1998-05

Semiconductor devices - Micro-electromechanical devices - Part 1: Terms and definitions (IEC 62047-1:2016); German version EN 62047-1:2016
Edition 2016-12

Chemical analysis of aluminosilicate refractory products (alternative to the X-ray fluorescence method) - Part 1: Apparatus, reagents, dissolution and gravimetric silica (ISO 21587-1:2007); German version EN ISO 21587-1:2007
Edition 2007-12

Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method) - Part 1: Apparatus, reagents, dissolution and determination of gravimetric silica (ISO 20565-1:2008); German version EN ISO 20565-1:2008
Edition 2009-06

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