Whatman glass microfiber filters without binder feature low resistance to fluid flow and high particle-loading capacity. These filters can be used at temperatures up to 500ºC. The fine capillary structure of glass fiberfilters can absorb large quantities of water, enabling spot tests and liquid scintillation counting methods.
Glass microfiber filters are mainly used in applications such as air or water monitoring and can be used as pre-filters for membranes. Grade GF/A offers fine particle retention and high flow rate, as well as good loading capacity.
Grade GF/A is used for high-efficiency general purpose laboratory filtration, including water pollution monitoring of effluents, for filtration of water, algae and bacteria cultures, foodstuff analyses, protein filtration, and radioimmunoassay of weak β emitters. Recommended for gravimetric determination of airborne particulates, stack sampling, and absorption methods of air pollution monitoring.
This filter is also available in the FilterCup and Disposable Filter Funnel formats.
Particle Retention In Liquid: 1.6 µm
Filtration Speed (Herzberg): Approx. 62 s
Air Flow Rate: 4.3 s/100 ml/in2
Typical Thickness: 260 µm
Basis Weight: 53 g/m2
