Whatman™ Glass Microfiber Prefilter, 1µm Particle Retention Rating Available on GSA/VA Contract for Federal Government customers only.

Multilayer graded density filters for rapid and efficient filtration of samples with high solids content. Whatman™ Glass Microfiber Prefilters are designed with a coarse glass filter top layer (10µm) meshed with a finer layer. The multigrade glass filter traps larger particles in its pores of the coarse layer, medium-sized particles in the interface meshing, and smaller particles in the interstices of the fine layer.

Manufacturer: Whatman™ 1841047

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Catalog No. 09-874-82

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    Airflow Rate 3.1 s/100 ml/1.56 cm2
    Quantity 40/pack
    Diameter (Metric) Outside 47mm
    Material Borosilicate glass
    Type Prefilter
    Diameter (English) Outside 1.8 in.
    Flow Rate 1.5 sec./100mL/1.56cm2
    Format Circle
    Grade GMF 150
    Particle Retention 1μm
    Temperature (English) Maximum 932°F
    Temperature (Metric) Max 500°C
    Thickness (English) 0.029 in.
    Thickness (Metric) 750μm
    For Use With (Application) Ideal as prefilters, nearly double filtration volume compared to single-density prefilters

    • Can filter nearly twice as much sample volume as that of a single-density prefilter
    • Compared to an unprotected membrane, three to seven times greater sample volume can be filtered
    • Higher particulate loading capacity and faster flow rates than uniform prefilters
    • Excellent particle retention (both large and small particles)
    • 100% borosilicate glass, binder-free
    • Extends life of final filter membrane

  • Description & Specifications

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