Medical electrical equipment - Part 2-69: Particular requirements for the basic safety and essential performance of oxygen concentrator equipment (ISO 80601-2-69:2020); German version EN ISO 80601-2-69:2020
Edition 2021-06

Liquid petroleum products - Determination of organic oxygenate compounds and total organically bound oxygen content in unleaded petrol - Method by gas chromatography (O-FID); German version EN 1601:2017
Edition 2017-10

German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of the chemical oxygen demand (COD), ranging from 5 to 50 mg/l (H 44)
Edition 1992-05

Plastics - Determination of the ultimate aerobic biodegradability of plastic materials in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved (ISO 17556:2019); German version EN ISO 17556:2019
Edition 2019-09

Chemical analysis of ferrous materials - Determination of oxygen content in steel and iron - Part 2: Infrared method after fusion under inert gas; German version EN 10276-2:2003
Edition 2003-10

Metallic powders - Determination of oxygen content by reduction methods - Part 2: Loss of mass on hydrogen reduction (hydrogen loss) (ISO 4491-2:2023); German version EN ISO 4491-2:2023
Edition 2023-07

Testing of materials for semiconductor technology; determination of impurities in carrier gases and doping gases; determination of water impurity in hydrogen, oxygen, nitrogen, argon and helium by using a diphosphorus pentoxide cell
Edition 1987-08

Water quality - Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium by determination of oxygen demand in a closed respirometer (ISO 9408:1999); German version EN ISO 9408:1999
Edition 1999-12

Thermal cutting - Boring with oxygen lance in mineral materials - Bases of process, temperatures, minimum accessories
Edition 2008-05

Plastics - Determination of aerobic biodegradation of non-floating plastic materials in a seawater/sandy sediment interface - Method by measuring the oxygen demand in closed respirometer (ISO 18830:2016); German version EN ISO 18830:2017
Edition 2018-02