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Chemicals used for treatment of water intended for human consumption. Iron (II) sulfate. Original standard UNE-EN 889-2005 in PDF full version. Additional info + preview on request

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Chemicals used for treatment of water intended for human consumption. Iron (III) chloride sulfate. Original standard UNE-EN 891-2006 in PDF full version. Additional info + preview on request

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Aerospace series - LOTAR - LOng Term Archiving and Retrieval of digital technical product documentation such as 3D, CAD and PDM data Part 003- Fundamentals and concepts. Original standard UNE-EN 9300-003-2013 in PDF full version. Additional info + preview on request

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Aerospace series. LOTAR. LOng Term Archiving and Retrieval of digital technical product documentation such as 3D, CAD and PDM data - Overview Data Flow. Original standard UNE-EN 9300-010-2018 in PDF full version. Additional info + preview on request

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Industrial communication networks. Profiles - Additional fieldbus profiles for real-time networks based on ISO/IEC/IEEE 8802-3. Original standard UNE-EN IEC 61784-2-2019 in PDF full version. Additional info + preview on request

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Superconductivity - Part 23- Residual resistance ratio measurement - Residual resistance ratio of Nb superconductors. Original standard UNE-EN IEC 61788-23-2018 in PDF full version. Additional info + preview on request

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