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Cooking fume extractors. Methods for measuring performance. Original standard UNE-EN IEC 61591-2023 in PDF full version. Additional info + preview on request

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Components for low-voltage surge protection - Part 341- Performance requirements and test circuits for thyristor surge suppressors (TSS). Original standard UNE-EN IEC 61643-341-2021 in PDF full version. Additional info + preview on request

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Amendment 11 - Low-voltage surge protective devices - Part 41: Surge protective devices connected to DC low-voltage power systems - Requirements and test methods. Original standard UNE-EN IEC 61643-41-2025 A11-2025 in PDF full version. Additional info + preview on request

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Low-voltage surge protective devices - Part 41- Surge protective devices connected to DC low-voltage power systems - Requirements and test methods. Original standard UNE-EN IEC 61643-41-2025 in PDF full version. Additional info + preview on request

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Photovoltaic (PV) modules Salt mist corrosion testing. Original standard UNE-EN IEC 61701-2021 in PDF full version. Additional info + preview on request

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Amendment 1 - Fibre optic interconnecting devices and passive components - Performance standard - Part 071-02- Non-connectorized single-mode fibre optic 1 × 2 and 2 × 2 spatial switches for category C - Controlled environments. Original standard UNE-EN IEC 61753-071-02-2020 A1-2024 in PDF full version. Additional info + preview on request

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