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Petroleum and related products - Determination of the extreme-pressure and anti-wear properties of lubricants - Four-ball method (European conditions) (ISO 20623-2017). Original standard BS EN ISO 20623-2018 in PDF full version. Additional info + preview on request

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Vapour products - Routine analytical vaping machine - Definitions and standard conditions (ISO 20768-2018). Original standard BS EN ISO 20768-2021 in PDF full version. Additional info + preview on request

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Textiles - Determination of the elasticity of fabrics - Part 3- Narrow fabrics (ISO 20932-3-2018). Original standard BS EN ISO 20932-3-2020 in PDF full version. Additional info + preview on request

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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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