Wastewater treatment plants - Part 13: Chemical treatment - Treatment of wastewater by precipitation/flocculation; German and English version prEN 12255-13:2021
Edition 2021-07

Wastewater treatment plants - Part 13: Chemical treatment; Treatment of wastewater by precipitation/flocculation; German version EN 12255-13:2002
Edition 2003-04

Heating systems and water based cooling systems in buildings - Energy efficiency classes for technical insulation systems - Calculation method and applications; German and English version prEN 17956:2023
Edition 2023-03

Earthworks - Soil treatment tests - Part 1: pH-test for determination of the lime requirement of soils for stabilization (Lime Fixation Point LFP, Lime Modification Optimum LMO); German version CEN/TS 17693-1:2021
Edition 2022-02

Energy Performance of Buildings - Controls for heating systems - Part 3: Control equipment for electrical heating systems - Modules M3-5, 6, 7, 8; German version EN 12098-3:2017
Edition 2018-01

Plain bearings - Requirements and guidance on backings for thick-walled multilayer bearings (ISO 6280:2018)
Edition 2020-04

Surfaces for sports areas - Part 2: Determination of shear strength by dynamic top layer testing of unbound mineral surfaces in the laboratory; German version EN 15301-2:2007
Edition 2007-07

Fans - Efficiency classification for fans - Part 4: Driven fans at maximum operating speed (ISO 12759-4:2019); German version EN ISO 12759-4:2019
Edition 2020-05

Nickel Anodes
Edition 1967-01