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    กระดาษกรอง Ashless filter paper (MN 640 d ≡ blue ribbon, No. 42)

    Ashless filter papers

    For quantitative analysis and filtration with low blank values 

    Ashless filter papers are particularly suited for quantitative routine  analysis and are manufactured from refined pulp and linters. They are acid-washed and have an extremely low ash content of 0.01%. The amount of a-cellulose is about 95%.

    Ashless filter paper grades

    Slow filtration, ashless, for filtration of very fine precipitates.

    Filter Papers – Filtrierpapiere

    Grade / Sorte                                            MN 640 d
    Weight / Gewicht [g/m2]                            85
    Thickness / Dicke [mm]                              0,17
    Filtration speed / Filtriergeschwindigkeit       140
    Surface / Oberfläche                                   smooth / glatt
    Ash content / Aschegehalt (%)                     < 0,01
    Average retention capacity /                         2 – 4
    mittleres Rückhaltevermögen

    Applications and properties /                        Ashless, slow filtration, for
    all fine and extremely fine
    precipitates /Anwendungen und Eigenschaften                

    Aschefrei, schnell                                        Aschefrei, langsam
    filtrierend, für feine und
    feinste Niederschläge 

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