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

Chemicals used for treatment of water intended for human consumption - Sodium hydrogen sulfite; German version EN 12120:2022
Edition 2023-03

Gas analysis - Analytical methods for hydrogen fuel - Proton exchange membrane (PEM) fuel cell applications for road vehicles (ISO 21087:2019)
Edition 2022-03

Transportable gas cylinders - Fully wrapped carbon composite cylinders and tubes for hydrogen; German version EN 17339:2020
Edition 2020-09

Hydrogen generators using water electrolysis - Part 1: General requirements, test protocols and safety requirements (ISO/DIS 22734-1:2024); German and English version prEN ISO 22734-1:2024
Edition 2024-10

Chemicals used for treatment of water intended for human consumption - Dipotassium hydrogen orthophosphate; German version EN 1202:2005
Edition 2005-06

Liquefied petroleum gases - Detection of hydrogen sulfide - Lead acetate method (ISO 8819:1993); German version EN ISO 8819:1995
Edition 1995-02

Welding and allied processes - Determination of hydrogen content in arc weld metal (ISO 3690:2018); German version EN ISO 3690:2018
Edition 2018-12

Solid biofuels - Determination of total content of carbon, hydrogen and nitrogen (ISO 16948:2015); German version EN ISO 16948:2015
Edition 2015-09

Aerospace series - Titanium and titanium alloys - Test method - Chemical analysis for the determination of hydrogen content; German and English version EN 3976:2006
Edition 2007-04