Fibre-optic communication subsystem test procedures - Part 4-2: Installed cable plant - Single-mode attenuation and optical return loss measurement (IEC 61280-4-2:2024); German version EN IEC 61280-4-2:2024 - Part 4-2: Installed cable plant - Single-mode attenuation and optical return loss measurement

Overhead lines - Requirements and tests for fittings

Industrial-process control - Safety of analyser houses (IEC 65B/1272/CDV:2024); German and English version prEN IEC 61285:2024

Optical amplifiers - Test methods - Part 1-2: Power and gain parameters - Electrical spectrum analyzer method (IEC 61290-1-2:2026); German version EN IEC 61290-1-2:2026

Optical amplifiers - Test methods - Part 3-2: Noise figure parameters - Electrical spectrum analyzer method

Optical amplifiers - Test methods - Part 11-1: Polarization mode dispersion parameter - Jones matrix eigenanalysis (JME)

Optical amplifiers - Part 5-2: Qualification specifications - Reliability qualification for optical fibre amplifiers

Process measurement and control devices - General methods and procedures for evaluating performance - Part 1: General considerations (IEC 65B/1269/CDV:2024); German and English version prEN IEC 61298-1:2024

Process measurement and control devices - General methods and procedures for evaluating performance - Part 2: Tests under reference conditions (IEC 65B/1270/CDV:2024); German and English version prEN IEC 61298-2:2024

Process measurement and control devices - General methods and procedures for evaluating performance - Part 3: Tests for the effects of influence quantities (IEC 65B/1271/CDV:2024); German and English version prEN IEC 61298-3:2024