Gas-fired central heating boilers - Part 2-1: Specific standard for type C appliances and type B2, B3 and B5 appliances of a nominal heat input not exceeding 1 000 kW

Textiles and textile products - Per- and polyfluoroalkyl substances (PFAS) - Part 1: Analysis of an alkaline extract using liquid chromatography and tandem mass spectrometry; German and English version prEN 17681-1:2023

Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs) - Part 1: General rules (IEC 23E/1224/CD:2020); Text in German and English

Fibre optic interconnecting devices and passive components - Performance standard - Part 081-02: Non-connectorized single-mode fibre optic middle-scale 1×N DWDM devices for category C - Controlled environments (IEC 61753-081-02:2023); German version EN IEC 61753-081-02:2023

Fibre optic interconnecting devices and passive components - Performance standard - Part 081-03: Non-connectorized single-mode fibre optic middle-scale 1×N DWDM devices for category OP - Outdoor protected environment (IEC 61753-081-03:2023); German version EN IEC 61753-081-03:2023

Fibre optic interconnecting devices and passive components - Performance standard - Part 081-06: Non-connectorized single-mode fibre optic middle-scale 1×N DWDM devices for category OP+ - Extended outdoor protected environment (IEC 61753-081-06:2023); German version EN IEC 61753-081-06:2023

IEC 61753-031-3/Ed2: Fibre optic interconnecting devices and passive components - Performance standard - Part 031- 3: Non-connectorised single-mode 1×N and 2×N non-wavelength-selective branching devices for Category U - Uncontrolled environment

IEC 61753-031-2/Ed1: Fibre optic interconnecting devices and passive components - Performance standard - Part 031- 2: Non-connectorised single-mode 1×N and 2×N non-wavelength-selective branching devices for Category C - Controlled environment

Railway applications - Wheelsets and bogies - Axles - Product requirements; German version FprEN 13261:2024

Safety and control devices for burners and appliances burning gaseous fuels - Multifunctional controls for gas burning appliances