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Ahlstrom

  • Grade 389 F Quantitative Ashless Filter Paper

    Munktell

    Quantitative ashless filter papers are recommended for quantitative analysis. As quantitative analysis requires a high purity, these filter papers are being washed out with acid. Ashless grades are made of pure cellulose with an alpha cellulose content of almost 100%. The ash content is less than…

  • 1289 Grade Qualitative Filter Paper

    Munktell

    Qualitative filter grades are used in basic qualitative analysis and are available as filter discs, sheets and folded filters. These papers maintain consistently high quality due to tightly controlled manufacturer parameters which ensure dependable sample filtration results, lot after lot year…

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