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    กระดาษกรอง Ashless filter paper (MN 640 m≡ white ribbon, No. 43)

    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 m
    Weight / Gewicht [g/m2]                            85
    Thickness / Dicke [mm]                              0,2
    Filtration speed / Filtriergeschwindigkeit       27
    Surface / Oberfläche                                   smooth / glatt
    Ash content / Aschegehalt (%)                     < 0,01
    Average retention capacity /                         4 – 12
    mittleres Rückhaltevermögen

    Applications and properties /                        Ashless, medium fast
    filtration, e.g. for sulphides,
    lead chromate, calcium
    oxalate /

    Anwendungen und Eigenschaften                  Aschefrei, mittelschnell
    filtrierend, z.B. für Sulfide,

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