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Steel and cast iron. Determination of copper. 2,2'-Biquinoline spectrophotometric method. Original standard UNE-EN ISO 4946-2016 in PDF full version. Additional info + preview on request

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Leather Determination of water resistance of flexible leather Part 1: Repeated linear compression (penetrometer) (ISO 5403-1:2025). Original standard UNE-EN ISO 5403-1-2026 in PDF full version. Additional info + preview on request

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Rubber- or plastics-coated fabrics Determination of abrasion resistance Part 1: Taber abrader (ISO 5470-1:2016). Original standard UNE-EN ISO 5470-1-2017 in PDF full version. Additional info + preview on request

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Water quality - Sampling - Part 6: Guidance on sampling of rivers and streams (ISO 5667-6:2014). Original standard UNE-EN ISO 5667-6-2017 in PDF full version. Additional info + preview on request

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Connections for fluid power and general use. Ports and stud ends with ISO 261 metric threads and O-ring sealing - Dimensions, design, test methods and requirements for external hex and internal hex port plugs. Original standard UNE-EN ISO 6149-4-2017 in PDF full version. Additional info + preview on request

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Earth-moving machinery Seat-belt assemblies and seat-belt anchorages Performance requirements and tests (ISO 6683:2025). Original standard UNE-EN ISO 6683-2026 in PDF full version. Additional info + preview on request

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