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Road traffic noise reducing devices. Test method for determining the acoustic performance - Intrinsic characteristics. Airborne sound insulation under diffuse sound field conditions. Original standard BS EN 1793-2-2025 in PDF full version. Additional info + preview on request

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Road traffic noise reducing devices. Test method for determining the acoustic performance - Normalized traffic noise spectrum. Original standard BS EN 1793-3-2025 in PDF full version. Additional info + preview on request

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Road traffic noise reducing devices. Test method for determining the acoustic performance - Intrinsic characteristics. Intrinsic sound diffraction. Original standard BS EN 1793-4-2025 in PDF full version. Additional info + preview on request

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Road traffic noise reducing devices. Test method for determining the acoustic performance - Intrinsic characteristics. Sound absorption under direct sound field conditions. Original standard BS EN 1793-5-2025 in PDF full version. Additional info + preview on request

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Road traffic noise reducing devices. Test method for determining the acoustic performance - Intrinsic characteristics. Airborne sound insulation under direct sound field conditions. Original standard BS EN 1793-6-2025 in PDF full version. Additional info + preview on request

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Transportable gas cylinders. Battery vehicles and multiple-element gas containers (MEGCs) for compressed and liquefied gases (excluding acetylene). Inspection at time of filling. Original standard BS EN 13385-2025 in PDF full version. Additional info + preview on request

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