Chemical Stability - Resistant to the majority of reagents and solvents, except acidic and base solutions of high concentration. Thermal Stability - Can withstand operating temperatures of up to 500C. In case of operating temperatures of up to 900°C we recommend the use of quartz microfibre filters. Mechanical Resistance - Resistant to creasing, therefore can be folded and transported to the laboratory for field atmospheric analysis. Permeability - High permeability of air therefore good flow velocities. Makes them ideal for the use in high-volume detectors. Retention of particles - Excellent level of retention due to physical and chemical qualities not only on the surface but also at depth through mechanisms of electrostatic adsorption and other processes, resulting in some cases to sizes of retention smaller 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 (relationship between weight in grams and thickness) and the nature of the fibers, these filters have a high load capacity. Ref: PF0520
