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Railway applications Track Noise barriers and related devices acting on airborne sound propagation Procedures for assessing long term performance Part 1: Acoustic characteristics. Original standard UNE-EN 16951-1-2019 in PDF full version. Additional info + preview on request

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Railway applications Track Noise barriers and related devices acting on airborne sound propagation Procedures for assessing long term performance Part 2: Non-acoustic characteristics. Original standard UNE-EN 16951-2-2019 in PDF full version. Additional info + preview on request

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Agglomerated stone. Slabs and cut-to-size products for flooring and stairs (internal and external). Original standard UNE-EN 16954-2019 in PDF full version. Additional info + preview on request

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Hardware for furniture. Tapered pressure tubes for self-supporting gas springs for the height adjustment of seating. Test methods and requirements for strength and durability. Original standard UNE-EN 16955-2017 in PDF full version. Additional info + preview on request

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Fertilizers. Extraction of water soluble micro-nutrients in fertilizers and removal of organic compounds from fertilizer extracts. Original standard UNE-EN 16962-2018 in PDF full version. Additional info + preview on request

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Fertilizers. Extraction of total micro-nutrients in fertilizers using aqua regia. Original standard UNE-EN 16964-2018 in PDF full version. Additional info + preview on request

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