Widely applied in chemical workflows, the Filter Circles, Qualitative, Grade 5, Ø 42.5 Mm serve as an essential tool for filtration. These filter circles, manufactured by Whatman, have a Type Sorte 5 classification and a basis weight of 98 g/m². They possess a typical thickness of 200 µm and offer slow airflow, making them suitable for handling delicate samples. With a filtration time of approximately 94 seconds, they effectively retain particles as small as 2.5 µm in liquids, making them ideal for clarifying cloudy suspensions and water and soil analysis.

• Category: Qualitative Filter Papers
• Type: Sorte 5
• Filtration time [s]: 94
• Filter type: filter circle
• Diameter [mm]: 42.5
• Description: slow
• Filtration speed herzberg: approx. 1420 s
• UNSPSC 13.5: 41104929
• Air flow: 94 (s / 100 ml / in2)
• Basis weight: 98 g / m2
• Brand: Whatman
• Particle retention in liquid: 2.5 µm
• Typical thickness: 200 µm