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Corrigendum - Plain washers for metric bolts, screws and nuts for general purposes - General plan (ISO 887:2000). Original standard UNE-EN ISO 887-2000 AC-2006 in PDF full version. Additional info + preview on request

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Milk and milk products. Determination of nitrogen content - Kjeldahl principle and crude protein calculation. Original standard UNE-EN ISO 8968-1-2014 in PDF full version. Additional info + preview on request

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Milk and milk products. Determination of nitrogen content - Determination of protein and non-protein nitrogen content and true protein content calculation (Reference method). Original standard UNE-EN ISO 8968-4-2016 in PDF full version. Additional info + preview on request

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Timber structures. Testing of joints made with mechanical fasteners. Requirements for timber density. Original standard UNE-EN ISO 8970-2020 in PDF full version. Additional info + preview on request

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Amendment 1 - Liquefied petroleum gases - Calculation method for density and vapour pressure - Amendment 1 (ISO 8973:1997/Amd 1:2020). Original standard UNE-EN ISO 8973-1999 A1-2020 in PDF full version. Additional info + preview on request

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Plastics. Phenolic resins. Determination of residual phenol content by gas chromatography. Original standard UNE-EN ISO 8974-2002 in PDF full version. Additional info + preview on request

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