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Water quality. Determination of suspended solids. Method by filtration through glass fibre filters. Original standard UNE-EN 872-2006 in PDF full version. Additional info + preview on request

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Chemicals used for treatment of water intended for human consumption. Polyaluminium chloride hydroxide silicate. Original standard UNE-EN 885-2005 in PDF full version. Additional info + preview on request

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Reciprocating internal combustion engine driven alternating current generating sets - Rotary uninterruptible power systems. Performance requirements and test methods. Original standard UNE-EN 88528-11-2004 in PDF full version. Additional info + preview on request

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Chemicals used for treatment of water intended for human consumption. Aluminium iron (III) sulfate. Original standard UNE-EN 887-2016 in PDF full version. Additional info + preview on request

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Chemicals used for treatment of water intended for human consumption. Iron (II) sulfate. Original standard UNE-EN 889-2005 in PDF full version. Additional info + preview on request

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Chemicals used for treatment of water intended for human consumption. Iron (III) chloride sulfate. Original standard UNE-EN 891-2006 in PDF full version. Additional info + preview on request

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