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    Grade 91 Qualitative Filter Paper Wet-Strengthened, 61x61cm Sheet, 500 Pk

    Thumbnail Filmstrip of Grade 91 Qualitative Filter Paper Wet-Strengthened, 61x61cm Sheet, 500 Pk Images

    • Grade 91 Qualitative Filter Paper Wet-Strengthened, 61x61cm Sheet, 500 Pk
    • Grade 91 Qualitative Filter Paper Wet-Strengthened, 61x61cm Sheet, 500 Pk
    Purchase Grade 91 Qualitative Filter Paper Wet-Strengthened, 61x61cm Sheet, 500 Pk

    Whatman
    Grade 91 Qualitative Filter Paper Wet-Strengthened, 61x61cm Sheet, 500 Pk SKU: 1091-935

    $1,158.38 $1,273.00
    Save $114.62
    Made to order. Contact us for lead time.
     

    A general purpose creped filter for less critical routine analysis. Widely used to assay sucrose in cane sugar and within pharmaceutical laboratories for routine filtration.

    These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not introduce any significant impurities into the filtrate. The resins do, however, contain nitrogen so these grades should not be used in Kjeldahl estimations, etc. Some wet strengthened grades are available in folded (prepleated) forms.

    Whatman Product Code1091-935
    TypeWet-Strengthened
    Filter MediaCellulose
    Grade91
    Size61 x 61 cm Sheet
    Typical Particle Retention in Liquid10 µm
    Thickness205 µm
    Basis Weight65 g/m^2
    Air Flow Rate6 s/100 mL/in^2
    Water Flow Rate274 ml/min
    FormatSheets
    Pack Size500