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IEC
IEC 61643-21:2025
En Vigor
2025-10-20
Low voltage surge protective devices - Part 21: Surge protective devices
connected to telecommunications and signalling networks - Requirements
and test methods
IEC
ISO/IEC 23000-22:2025/AMD1:2025
En Vigor
2025-10-20
Information technology - Multimedia application format (MPEG-A) - Part
22: Multi-image application format (MIAF) - Amendment 1: Implementation
based technologies for MIAF
IEC
IEC 62933-4-3:2025
En Vigor
2025-10-20
Electrical energy storage (EES) systems - Part 4-3: Protection
requirements of battery-based energy storage systems (BESS) according to
environmental conditions
IEC
IEC 61252:2025
En Vigor
2025-10-17
Electroacoustics - Personal sound exposure meters
