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Pumps. Rotodynamic pumps. Glandless circulators having a rated power input not exceeding 200 W for heating installations and domestic hot water installations. Noise test code (vibro-acoustics) for measuring structure- and fluid-borne noise. Original standard UNE-EN 16644-2015 in PDF full version. Additional info + preview on request

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Maintenance. Maintenance within physical asset management. Original standard UNE-EN 16646-2015 in PDF full version. Additional info + preview on request

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Conservation of cultural heritage. Transport methods. Original standard UNE-EN 16648-2016 in PDF full version. Additional info + preview on request

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Fertilizers. Determination of N-(n-Butyl)thiophosphoric acid triamide (NBPT) and N-(n-Propyl)thiophosphoric acid triamide (NPPT). Method using high-performance liquid chromatography (HPLC). Original standard UNE-EN 16651-2016 in PDF full version. Additional info + preview on request

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Corrigendum - Hexagon bolts with flange - Heavy series. Original standard UNE-EN 1665-1998 AC-2007 in PDF full version. Additional info + preview on request

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LPG equipment and accessories. Automotive LPG vehicles workshops. Working areas and procedures. Original standard UNE-EN 16652-1-2016 in PDF full version. Additional info + preview on request

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