Intended for structured formulation workflows, the Filter Circles, Qualitative, Grade 50, Ø 55 Mm, from Whatman, offer exceptional performance in qualitative or quantitative filtrations. These circles feature a Type Sorte 50 designation, Basis weight of 97 g/m², and a typical thickness of 115 µm. With a slow filtration rate of 144 seconds and a particle retention in liquid of 2.7 µm, these filters ensure precise results in various applications. Suitable for use on Büchner or 3-piece filter funnels, they can withstand wet handling and precipitate removal by scraping.

• Category: Quantitative Filter Papers
• Ash content: 0.015 %
• Typical thickness: 115 µm
• Diameter [mm]: 55
• Brand: Whatman
• Filtration time [s]: 144
• Particle retention in liquid: 2.7 µm
• Type: Sorte 50
• Description: slow
• Filtration speed Herzberg: 2685 s
• Filter type: filter circle
• Basis weight: 97 g / m2
• UNSPSC 13.5: 41104929