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Dentistry. Membrane materials for guided tissue regeneration in oral and maxillofacial surgery. Contents of a technical file. Original standard BS EN ISO 22803-2005 in PDF full version. Additional info + preview on request

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Textiles. Determination of short-chain chlorinated paraffins (SCCP) and middle-chain chlorinated paraffins (MCCP) in textile products out of different matrices by use of gas chromatography negative ion chemical ionization mass spectrometry. Original standard BS EN ISO 22818-2021 in PDF full version. Additional info + preview on request

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Non-destructive testing of welds. Ultrasonic testing. Testing of welds in austenitic steels and nickel-based alloys. Original standard BS EN ISO 22825-2017 in PDF full version. Additional info + preview on request

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Destructive tests on welds in metallic materials. Hardness testing of narrow joints welded by laser and electron beam (Vickers and Knoop hardness tests). Original standard BS EN ISO 22826-2021 in PDF full version. Additional info + preview on request

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Resistance welding equipment. Transformers. Integrated transformer-rectifier units for welding guns operating at 1 000 Hz. Original standard BS EN ISO 22829-2017 in PDF full version. Additional info + preview on request

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Liquid petroleum products. Determination of hydrocarbon types and oxygenates in automotive-motor gasoline and in ethanol (E85) automotive fuel. Multidimensional gas chromatography method. Original standard BS EN ISO 22854-2025 in PDF full version. Additional info + preview on request

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