Glass Microfiber Filter, Grade GF 50, W/O Binder, Plain Discs, 47 mm Diameter, 100 pcs/pack

Hahnemühle glass microfiber filters without binder feature low resistance to fluid flow and high particle-loading capacity. The fine capillary structure of glass fiber filters can absorb large quantities of water, enabling spot tests and liquid scintillation counting methods.

• Made of 100% borosilicate glass fibres without binders
• The large surface area (about 2m²/g) provides an outstanding retention capacity
• Extremely low metal content
• Chemical stability: It keeps all its properties in contact with acid solutions (except hydrofluoric acid) and/or basic solutions at moderate concentrations
• High flow speed and high permeability to air
• Good stability at high temperatures up to 500°C

Glass microfiber filters are mainly used in applications such as air or water monitoring. Glass fibre filters absorb the finest particles down to 1 μm from liquids, in air, gases and even aerosols with 0.3 - 0.5 μm are separated.

Applications

• Water pollution analysis: Determination of suspended particles as per DIN 38409 and EN 872
• Biochemical issues like DNA, RNA, proteins and polysaccharides
• Determination of suspended particles (SPM and TSP) as per the directive of the US EPA
• Cleaning and buffering solutions and reagents for spectrophotometric measurements

*Weight consistency: No relevant changes in weight due to variations in the ambient humidity.
*Limited bending resistance: Brushing against other surfaces may cause the loss of fibres (keep the filters in their original box until their use).