Low-voltage surge protective devices - Part 01: General Requirements and test methods (IEC 37A/338/CD:2019); Text in German and English

Low voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Requirements and testing methods (IEC 37A/399/CD:2023)

Fibre optic interconnecting devices and passive components - Fibre optic connector multimode optical interfaces - Part 2-2: Connection of 50 µm core diameter multimode physically contacting fibres - Non-angled and angled for reference connector application, at wavelength of 850 nm using IEC 60793-2-10 selected A1-OM2b to A1-OM5b fibre only (IEC 86B/4607/CD:2022); Text in German and English

Guidelines for the installation and operational implementation of continuous measuring systems

Water quality - Minimum requirements for the selection, installation, validation, and operation of continuous measuring devices