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Plastics. Polybutene-1 (PB-1) moulding and extrusion materials - Preparation of test specimens and determination of properties. Original standard BS EN ISO 21302-2-2019 in PDF full version. Additional info + preview on request

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Guidance and recommendations on design, selection and installation of vents to safeguard the structural integrity of enclosures protected by gaseous fire-extinguishing systems (ISO 21805-2023). Original standard BS EN ISO 21805-2023 in PDF full version. Additional info + preview on request

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Geometrical product specifications (GPS). Surface texture- Profile - Indication of surface texture. Original standard BS EN ISO 21920-1-2022 in PDF full version. Additional info + preview on request

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Geometrical product specifications (GPS). Surface texture- Profile. Terms, definitions and surface texture parameters. Original standard BS EN ISO 21920-2-2022 (2023) in PDF full version. Additional info + preview on request

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Geometrical product specifications (GPS). Surface texture- Profile - Specification operators. Original standard BS EN ISO 21920-3-2022 in PDF full version. Additional info + preview on request

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Blast chiller and freezer cabinets for professional use - Classification, requirements and test conditions (ISO 22042-2021). Original standard BS EN ISO 22042-2021 in PDF full version. Additional info + preview on request

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