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Solid recovered fuels. Determination of calorific value. Original standard BS EN ISO 21654-2021 in PDF full version. Additional info + preview on request

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Solid recovered fuels. Determination of ash content. Original standard BS EN ISO 21656-2021 in PDF full version. Additional info + preview on request

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Solid recovered fuels. Determination of moisture content using the oven dry method. Moisture in general analysis sample. Original standard BS EN ISO 21660-3-2021 in PDF full version. Additional info + preview on request

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Solid recovered fuels. Methods for the determination of carbon (C), hydrogen (H), nitrogen (N) and sulphur (S) by the instrumental method. Original standard BS EN ISO 21663-2020 in PDF full version. Additional info + preview on request

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Fasteners. Hexagon weld nuts with flange. Original standard BS EN ISO 21670-2014 in PDF full version. Additional info + preview on request

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Dentistry. Rotary polishers. Original standard BS EN ISO 21671-2006 + A1-2011 in PDF full version. Additional info + preview on request

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