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Plastics. Determination of refractive index (ISO 489:2022). Original standard UNE-EN ISO 489-2022 in PDF full version. Additional info + preview on request

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Steel and cast iron Determination of copper content Flame atomic absorption spectrometric method (ISO 4943:2022). Original standard UNE-EN ISO 4943-2023 in PDF full version. Additional info + preview on request

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Steel and cast iron Determination of vanadium content Potentiometric titration method (ISO 4947:2020). Original standard UNE-EN ISO 4947-2021 in PDF full version. Additional info + preview on request

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Textile fibres Determination of breaking force and elongation at break of individual fibres (ISO 5079:2020). Original standard UNE-EN ISO 5079-2021 in PDF full version. Additional info + preview on request

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Acoustics Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation test room (ISO 5135:2020). Original standard UNE-EN ISO 5135-2021 in PDF full version. Additional info + preview on request

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Petroleum products Determination of the ignition quality of diesel fuels Cetane engine method (ISO 5165:2020). Original standard UNE-EN ISO 5165-2021 in PDF full version. Additional info + preview on request

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