Refined to support reproducible outcomes in chemical operations, the "Filter Circles, Qualitative, Grade 4, Dia.: 70 Mm" are designed for efficient filtration of coarse particles and gelatinous precipitates, such as ferric hydroxide and aluminium hydroxide. These filters offer quick filtration times, with a filtration speed of 37 seconds, making them ideal for routine clean-up tasks in various laboratory settings, including biological fluid analysis and organic extraction processes. With a particle retention range of 20 to 25 microns, these filters ensure effective separation without compromising on flow rate. Manufactured by Whatman, these qualitative filter papers boast a weight of 96 grams per square meter and a thickness of 0.2 millimeters, providing robust performance and durability in demanding applications.

• Category: Qualitative Filter Papers
• UNSPSC 13.5: 41104929
• Weight: 96 g / m2
• Diameter [mm]: 70
• Ash: 0.06 %
• Type: Sorte 4
• Brand: Whatman
• Filter type: filter circle
• Filtration time [s]: 37
• Thickness: 0.20 mm
• Filtration speed: 37 s
• Particle retention: 20 to 25 µm