Prepared for use in regulated laboratory conditions, the Qualitative Filter Circles, Grade 5, with a diameter of 125 mm, belong to the category of Qualitative Filter Papers. Manufactured by Whatman, these filter circles have a basis weight of 98 g/m2 and a typical thickness of 200 µm. They offer an airflow of 94 (s/100 ml/in2) and a slow filtration speed, approximately 1420 s. These filters are designed to retain particles larger than 2.5 µm in liquid, making them suitable for chemical analysis, especially in clarifying cloudy suspensions and for water and soil analysis.

• Category: Qualitative Filter Papers
• Air flow: 94 (s / 100 ml / in2)
• Particle retention in liquid: 2.5 µm
• Description: slow
• Filtration speed herzberg: approx. 1420 s
• Diameter [mm]: 125
• Basis weight: 98 g / m2
• Filter type: filter circle
• Filtration time [s]: 94
• Brand: Whatman
• Typical thickness: 200 µm
• Type: Sorte 5
• UNSPSC 13.5: 41104929