Packaged to preserve integrity during storage and transportation, these Qualitative Filter Circles, Grade 50, with a diameter of 42.5 mm, belong to the category of Quantitative Filter Papers. Manufactured by Whatman, they have a Type Sorte 50, Basis weight of 97 g/m², and a typical thickness of 115 µm. They offer slow filtration, ensuring efficient separation of particles down to 2.7 µm in size. With an ash content of 0.015 %, these filter circles provide excellent performance for qualitative or quantitative filtrations requiring vacuum assistance on Büchner or 3-piece filter funnels.

• Category: Quantitative Filter Papers
• Brand: Whatman
• UNSPSC 13.5: 41104929
• Filter type: filter circle
• Filtration time [s]: 144
• Ash content: 0.015 %
• Particle retention in liquid: 2.7 µm
• Filtration speed Herzberg: 2685 s
• Typical thickness: 115 µm
• Diameter [mm]: 42.5
• Type: Sorte 50
• Basis weight: 97 g / m2
• Description: slow