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Technical drawings. Screw threads and threaded parts - Simplified representation. Original standard UNE-EN ISO 6410-3-2021 in PDF full version. Additional info + preview on request

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Plastics. Determination of dynamic mechanical properties - Flexural vibration. Resonance-curve method. Original standard UNE-EN ISO 6721-3-2021 in PDF full version. Additional info + preview on request

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Heat-treatable steels, alloy steels and free-cutting steels - Case-hardening steels. Original standard UNE-EN ISO 683-3-2022 in PDF full version. Additional info + preview on request

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Microbiology of the food chain. Preparation of test samples, initial suspension and decimal dilutions for microbiological examination - Specific rules for the preparation of miscellaneous products. Original standard UNE-EN ISO 6887-4-2017 in PDF full version. Additional info + preview on request

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Amendment 1 - Microbiology of the food chain - Horizontal method for the enumeration of coagulase-positive staphylococci (Staphylococcus aureus and other species) - Part 1- Method using Baird-Parker agar medium. Original standard UNE-EN ISO 6888-1-2022 A1-2024 in PDF full version. Additional info + preview on request

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Amendment 1 - Microbiology of the food chain - Horizontal method for the enumeration of coagulase-positive staphylococci (Staphylococcus aureus and other species) - Part 2- Method using rabbit plasma fibrinogen agar medium. Original standard UNE-EN ISO 6888-2-2022 A1-2024 in PDF full version. Additional info + preview on request

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