Made available in multiple packaging formats for flexible procurement, these Qualitative Filter Circles, Grade 5, with a diameter of 240 mm, are designed for slow airflow applications. Manufactured by Whatman, they have a basis weight of 98 g/m² and a typical thickness of 200 µm. These filters are capable of retaining particles as small as 2.5 µm, making them ideal for chemical analysis where fine precipitates need to be filtered out. They are particularly useful for clarifying cloudy suspensions and for water and soil analysis.

• Category: Qualitative Filter Papers
• Typical thickness: 200 µm
• Description: slow
• Particle retention in liquid: 2.5 µm
• Basis weight: 98 g / m2
• Filter type: filter circle
• Filtration speed herzberg: approx. 1420 s
• Diameter [mm]: 240
• Type: Sorte 5
• UNSPSC 13.5: 41104929
• Brand: Whatman
• Filtration time [s]: 94
• Air flow: 94 (s / 100 ml / in2)