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Metallic materials. Vickers hardness test - Tables of hardness values. Original standard UNE-EN ISO 6507-4-2018 in PDF full version. Additional info + preview on request

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Corrosion of metals and alloys. Determination of dezincification resistance of copper alloys with zinc - Test method. Original standard UNE-EN ISO 6509-1-2014 in PDF full version. Additional info + preview on request

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Welding and allied processes - Classification of geometric imperfections in metallic materials - Part 1: Fusion welding (ISO 6520-1:2007). Original standard UNE-EN ISO 6520-1-2009 in PDF full version. Additional info + preview on request

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Welding and allied processes. Classification of geometric imperfections in metallic materials - Welding with pressure. Original standard UNE-EN ISO 6520-2-2013 in PDF full version. Additional info + preview on request

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Protective clothing. Protection agaist liquid chemicals. Test method for resistance of materials to penetration by liquids. Original standard UNE-EN ISO 6530-2005 in PDF full version. Additional info + preview on request

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Petroleum liquids and gases - Fidelity and security of dynamic measurement - Cabled transmission of electric and/or elecronic pulsed data (ISO 6551:1982). Original standard UNE-EN ISO 6551-1995 in PDF full version. Additional info + preview on request

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