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    กระดาษกรอง Ashless filter paper (MN 640 md ≡ red ribbon, No .40)

    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

    Medium fast filtration, ashless, for example for magnesium-ammonium-phosphate and zinc sulfide.

    Filter Papers – Filtrierpapiere
    Grade / Sorte                                            MN 640 md
    Weight / Gewicht [g/m2]                            85
    Thickness / Dicke [mm]                              0,2
    Filtration speed / Filtriergeschwindigkeit       55
    Surface / Oberfläche                                   smooth / glatt
    Ash content / Aschegehalt (%)                     < 0,01
    Average retention capacity /                         4 – 7
    mittleres Rückhaltevermögen

    Applications and properties /                        Ashless, medium fast
    filtration, e.g. for
    magnesium ammonium
    phosphate, zinc sulphide,
    etc. /

    Anwendungen und Eigenschaften                 Aschefrei, mittelschnell
    filtrierend, z.B. für
    Zinksulfid etc. 

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