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Components for low-voltage surge protection - Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs). Original standard UNE-EN IEC 61643-352-2018 in PDF full version. Additional info + preview on request

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Fibre optic interconnecting devices and passive components. Fibre optic connector interfaces - Type MPO connector family. Two fibre rows. Original standard UNE-EN IEC 61754-7-2-2018 in PDF full version. Additional info + preview on request

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Amendment 1 - Industrial communication networks. Profiles - Installation of fieldbuses. Installation profiles for CPF 3. Original standard UNE-EN IEC 61784-5-3-2018 A1-2024 in PDF full version. Additional info + preview on request

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Superconductivity - Mechanical properties measurement. Room temperature tensile test on REBCO wires. Original standard UNE-EN IEC 61788-25-2018 in PDF full version. Additional info + preview on request

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Function blocks (FB) for process control and electronic device description language (EDDL) - Specification of FB concept. Original standard UNE-EN IEC 61804-2-2018 in PDF full version. Additional info + preview on request

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Multimedia systems. Guide to the recommended characteristics of analogue interfaces to achieve interoperability (GMT). Original standard UNE-EN IEC 61938-2018 in PDF full version. Additional info + preview on request

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