Formulated to support synthetic operations, these Filter Circles, Qualitative, Grade 541, with a diameter of 150 mm, are designed for fast filtration of coarse particles and gelatinous precipitates in acid/alkali solutions during gravimetric analysis. Manufactured by Whatman, these filter circles boast a basis weight of 82 g/m² and a typical thickness of 155 µm. With a filtration time of 3 seconds and a filtration speed of 34 seconds they efficiently separate particles within the range of 20 to 25 µm in liquid. Their ash content is less than 0.006%, ensuring minimal contamination during filtration processes.

• Category: Quantitative Filter Papers
• Filtration time [s]: 3
• Description: fast
• Diameter [mm]: 150
• Filter type: filter circle
• Basis weight: 82 g / m2
• Typical thickness: 155 µm
• Filtration speed Herzberg: 34 s
• Particle retention in liquid: 20 to 25 µm
• Ash content: < 0.006 %
• Type: Sorte 541
• UNSPSC 13.5: 41104929
• Brand: Whatman