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Hearing protectors. Guidance on selection of individual fit testing methods. Original standard BS EN 17479-2021 in PDF full version. Additional info + preview on request

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Glass in building. Special basic products. Borosilicate glasses. Definition and general physical and mechanical properties. Original standard BS EN 1748-1-1-2004 in PDF full version. Additional info + preview on request

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Glass in building. Special basic products. Borosilicate glasses. Evaluation of conformity. Product standard. Original standard BS EN 1748-1-2-2004 in PDF full version. Additional info + preview on request

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Glass in building. Special basic products. Glass ceramics. Definitions and general physical and mechanical properties. Original standard BS EN 1748-2-1-2004 in PDF full version. Additional info + preview on request

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Glass in building. Special basic products. Glass ceramics. Evaluation of conformity/Product standard. Original standard BS EN 1748-2-2-2004 in PDF full version. Additional info + preview on request

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Algae and algae products. Methods for the determination of productivity of algae growth sites. Original standard BS EN 17480-2021 in PDF full version. Additional info + preview on request

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