Available for professional procurement in standard pack sizes, the Quantitative Filter Paper, specifically the Fillter Circles, Qualitative, Grade 540, Ø 90 Mm, falls under the category of high-quality filtration tools. Manufactured by Whatman, this filter paper boasts a Type Sorte 540 classification, offering medium retention and flow rate. With an ash content of less than 0.006%, it ensures extremely pure results. Its typical thickness is 160 µm, and it can filter particles as small as 8 µm in liquid. This filter paper is ideal for gravimetric analysis of metals in acid/alkali solutions and for collecting hydroxides after precipitation by strong alkalis.

• Category: Quantitative Filter Papers
• Type: Sorte 540
• Description: medium
• Diameter [mm]: 90
• Particle retention in liquid: 8 µm
• Filtration speed Herzberg: 200 s
• Basis weight: 88 g / m2
• Filter type: filter circle
• Typical thickness: 160 µm
• Filtration time [s]: 200
• Ash content: < 0.006 %
• UNSPSC 13.5: 41104929
• Brand: Whatman