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Characterization of sludges. Determination of Kjeldahl nitrogen. Original standard BS EN 13342-2000 in PDF full version. Additional info + preview on request

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Characterization of sludges. Determination of trace elements and phosphorous. Aqua regia extraction methods. Original standard BS EN 13346-2000 in PDF full version. Additional info + preview on request

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Copper and copper alloys. Rod and wire for welding and braze welding. Original standard BS EN 13347-2002 in PDF full version. Additional info + preview on request

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Copper and copper alloys. Seamless, round copper tubes for medical gases or vacuum. Original standard BS EN 13348-2016 in PDF full version. Additional info + preview on request

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Copper and copper alloys. Pre-insulated copper tubes with solid covering. Original standard BS EN 13349-2002 in PDF full version. Additional info + preview on request

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Office furniture. Office work chair - Dimensions. Determination of dimensions. Original standard BS EN 1335-1-2020 + A1-2022 in PDF full version. Additional info + preview on request

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