2023DIN EN 14972-11:2023-07 Fixed firefighting systems - Water mist systems - Part 11: Test protocol for cable tunnels for open nozzle systems; German version EN 14972-11:2023
2022DIN EN 14972-11:2022-06 Plant biostimulants - Determination of inorganic arsenic; German version CEN/TS 17706:2022