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Sterile rectal catheters for single use. Original standard UNE-EN 12439-1999 in PDF full version. Additional info + preview on request

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Natural stone. Denomination criteria. Original standard UNE-EN 12440-2019 in PDF full version. Additional info + preview on request

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Zinc and zinc alloys - Chemical analysis - Part 1: Determination of aluminium in zinc alloys - Titrimetric method. Original standard UNE-EN 12441-1-2001 in PDF full version. Additional info + preview on request

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Amendment 1 - Zinc and zinc alloys - Chemical analysis - Part 1: Determination of aluminium in zinc alloys - Titrimetric method. Original standard UNE-EN 12441-1-2001 A1-2004 in PDF full version. Additional info + preview on request

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Amendment 1 - Zinc and zinc alloys - Chemical analysis - Part 2: Determination of magnesium in zinc alloys - Flame atomic absorption spectrometric method. Original standard UNE-EN 12441-2-2001 A1-2003 in PDF full version. Additional info + preview on request

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Amendment 2 - Zinc and zinc alloys - Chemical analysis - Part 2: Determination of magnesium in zinc alloys - Flame atomic absorption spectrometric method. Original standard UNE-EN 12441-2-2001 A2-2004 in PDF full version. Additional info + preview on request

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