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Ductile iron pipes, fittings and accessories Requirements and test methods Part 1: PE coatings. Original standard UNE-EN 14628-1-2021 in PDF full version. Additional info + preview on request

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Railway applications. Track. Aluminothermic welding of rails - Qualification of aluminothermic welders, approval of contractors and acceptance of welds. Original standard UNE-EN 14730-2-2021 in PDF full version. Additional info + preview on request

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Characterization of waste. Preparation of waste samples for ecotoxicity tests. Original standard UNE-EN 14735-2021 in PDF full version. Additional info + preview on request

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Corrigendum - Installation and equipment for liquefied natural gas Design and testing of marine transfer systems Part 2: Design and testing of transfer hoses. Original standard UNE-EN 1474-2-2021 AC-2023 in PDF full version. Additional info + preview on request

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Installation and equipment for liquefied natural gas - Design and testing of marine transfer systems - Part 2- Design and testing of transfer hoses. Original standard UNE-EN 1474-2-2021 in PDF full version. Additional info + preview on request

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Building valves. Expansion groups. Tests and requirements. Original standard UNE-EN 1488-2021 in PDF full version. Additional info + preview on request

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