Subsoil - Water effects on building components in contact with the ground and drainage for the protection of these building components - Part 1: Definitions and water effects

Corrosion tests in artificial atmospheres - Accelerated corrosion tests involving alternate exposure to corrosion-promoting gases, neutral salt-spray and drying (ISO 21207:2025); German version EN ISO 21207:2025

Plastics piping systems for non-pressure underground conveyance and storage of non-potable water - Boxes used for infiltration, attenuation and storage systems - Part 4: Guidance for structural design of modular systems; German version CEN/TS 17152-4:2025