Recommended for applications requiring controlled solvent behavior, the Qualitative Filter Circles, Grade 2, from Whatman, exhibit a slight increase in retention and absorption compared to their Grade 1 counterparts. This enhanced absorbency is particularly useful in holding soil nutrients during plant growth trials and monitoring specific contaminants in atmospheric and soil testing. With a diameter of 55 millimeters, these filter circles offer efficient filtration within the 8 micrometer particle size range, while maintaining a filtration speed of 240 seconds per square centimeter.

• Category: Qualitative Filter Papers
• Weight: 103 g / m2
• Particle retention: 8 µm
• Filter type: filter circle
• Type: Sorte 2
• Ash: 0.06 %
• Brand: Whatman
• Thickness: 0.19 mm
• Filtration time [s]: 20
• Filtration speed: 240 s
• UNSPSC 13.5: 41104929
• Diameter [mm]: 55