Range of filters manufactured exclusively with 100% borosilicate glass microfibres and free of any type of binder.
These filters are able to combine fast filtration speeds with high load capacities together with excellent fine particle retention.
Technical specifications
PROPERTIES
Chemical stability
Glass microfiber filters from FILTER-LAB® have an excellent stability, being resistant to the majority of reagents and solvents, except acidic and base solutions of high concentration.
Thermal stability
Likewise, these filters can withstand operating temperatures up to 500oC. Beyond this approximate value it starts to lose its customary qualities. In case of operating temperatures of up to 900oC we recommend the use of FILTER-LAB® quartz microfiber filters, ref. MFQ.
Mechanical resistance
This kind of filters are resistant to creasing, so that’s why the sheets can be folded for transport or sent to the laboratory for field atmospheric analyses, for example.
Permeability
Glass microfiber filters have high permeability against the passing of air so that is why they generally have good flow velocities. All of this make them ideal for the use in high-volume samplers.
Retention of particles
The physical and chemical qualities of the glass microfibers are such that these filters have an excellent level of retention of particles, not only on the surface, but also depth through mechanisms of electrostatic adsorption and other processes, resulting in some cases of smaller retentions than a micron.
Stability in weight
Since they are not hygroscopic, the glass microfiber filters do not exhibit significant variations in weight.
Load capacity
Due to its high apparent density (relation between weight in grams and thickness) and the nature of the fibers, these filters have a large load capacity.
Formats and dimensions
Metal traces (ppm)
