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Electromagnetic compatibility (EMC) - Part 2-9- Environment - Description of HEMP environment - Radiated disturbance. IEC 61000-2-9:2025-05(en). Original standard IEC 61000-2-9-2025 in PDF full version. Additional info + preview on request

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Electromagnetic compatibility (EMC) - Part 4-27: Testing and measurement techniques - Unbalance, immunity test for equipment with input current not exceeding 16 A per phase. Consolidated version (CSV). IEC 61000-4-27:2000-08+AMD1:2029-02+AMD2:2025-09 CSV(en). Original standard IEC 61000-4-27-2025 in PDF full version. Additional info + preview on request

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Electromechanical equipment guidance for small hydroelectric installations. IEC 61116:2025-09(en). Original standard IEC 61116-2025 in PDF full version. Additional info + preview on request

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Radio-frequency connectors - Part 23- Pin and socket connector for use with 3,5 mm rigid precision coaxial lines with inner diameter of outer conductor of 3,5 mm (0,1378 in). IEC 61169-23:2025-08. Original standard IEC 61169-23-2025 in PDF full version. Additional info + preview on request

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Materials for printed boards and other interconnecting structures - Part 2-52- Reinforced base materials clad and unclad - Thermosetting hydrocarbon resin system, woven E-glass reinforced laminate sheets of defined flammability (vertical burning test), copper-clad. IEC 61249-2-52:2025-09(en). Original standard IEC 61249-2-52-2025 in PDF full version. Additional info + preview on request

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Wind energy generation systems - Part 5: Wind turbine blades. IEC 61400-5:2020-06+AMD1:2025-08 CSV. Original standard IEC 61400-5-2025 in PDF full version. Additional info + preview on request

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