Whatman Grade GF/D Glass Microfiber Prefilters, 125 mm Circle, 25 pack, 1823-125

These prefilter papers offer increased pore size for fastest filtration speed and flow rate of any of the Whatman brand glass microfiber filter papers. That along with their thick design makes for incredible loading capacity making them ideal for air filtration, among other applications.
Regular Price $89.90 Price $79.50
In stock
SKU
1823-125

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GF/D grade glass microfiber prefilters, like other glass microfiber filtering options, are designed thick to offer high loading capacities. They also offer increased flow rate and filtering speed relative to other filtering materials of similar particle retention rates. These properties make GF/D prefilters ideal for air filtration and for gravimetric analysis of volatile materials when ignition is involved.

They are generally recommended for fluid flow and high particle loading capacity situations and can provide good protection for finely retentive membranes. GF/D prefilters can be combined with similarly sized GF/B filters to provide even better, and more efficient prefilter protection for such membranes.

These circular prefilter papers are 125 mm in diameter.

Whatman product code1823-125
Filter Mediabinder free glass microfiber
MaterialBorosilicate glass
Particle Retention Rate2.7 µm
Diameter125 mm
Thickness675 µm
Maximum Temperature550°C
Air Flow Rate2.6 s/100 ml/in^2
Water Flow Rate681 (ml/min)^2
Pack Size25
ApplicationAir filtration and gravimetric analysis of volatile materials involving ignition
More Information
Grade GF/D
Format Circle
Manufacturer Whatman

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