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Aerospace series. LOTAR. LOng Term Archiving and Retrieval of digital technical product documentation such as 3D CAD and PDM data - Semantic representation of CAD 3D Explicit Geometry with Product and Manufacturing Information. Original standard UNE-EN 9300-121-2023 in PDF full version. Additional info + preview on request

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Aerospace series. LOTAR. LOng Term Archiving and Retrieval of digital technical product documentation such as 3D, CAD and PDM data - Explicit CAD assembly structure with Graphic Product and Manufacturing Information (PMI). Original standard UNE-EN 9300-125-2023 in PDF full version. Additional info + preview on request

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Tests for general properties of aggregates Part 3: Procedure and terminology for simplified petrographic description. Original standard UNE-EN 932-3-2023 in PDF full version. Additional info + preview on request

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Tests for geometrical properties of aggregates Part 2: Determination of particle size distribution Test sieves, nominal size of apertures. Original standard UNE-EN 933-2-2022 in PDF full version. Additional info + preview on request

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Tests for geometrical properties of aggregates Part 5: Determination of percentage of crushed particles in coarse and all-in natural aggregates. Original standard UNE-EN 933-5-2023 in PDF full version. Additional info + preview on request

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Tests for geometrical properties of aggregates Part 9: Assessment of fines - Methylene blue test. Original standard UNE-EN 933-9-2023 in PDF full version. Additional info + preview on request

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