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Soft soldering fluxes Classification and requirements Part 2: Performance requirements (ISO 9454-2:2020). Original standard UNE-EN ISO 9454-2-2021 in PDF full version. Additional info + preview on request

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Soft soldering fluxes Test methods Part 5: Copper mirror test (ISO 9455-5:2020). Original standard UNE-EN ISO 9455-5-2021 in PDF full version. Additional info + preview on request

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Soft soldering fluxes Test methods Part 9: Determination of ammonia content (ISO 9455-9:2020). Original standard UNE-EN ISO 9455-9-2021 in PDF full version. Additional info + preview on request

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Nuclear energy. Nuclear fuel technology. Determination of plutonium in nitric acid solutions by spectrophotometry. Original standard UNE-EN ISO 9463-2021 in PDF full version. Additional info + preview on request

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Solar energy. Vocabulary. Original standard UNE-EN ISO 9488-2022 in PDF full version. Additional info + preview on request

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Non-destructive testing Qualification and certification of NDT personnel (ISO 9712:2021). Original standard UNE-EN ISO 9712-2023 in PDF full version. Additional info + preview on request

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