Available for professional procurement in standard pack sizes, these Quantitative Filter Papers from Whatman are Grade 42 Ashless Filter Circles with a diameter of 42.5 mm. They boast a weight of 100 g/m² and a thickness of 0.20 mm. These filters have an exceptional filtration speed of 1870 seconds and a particle retention of 2.5 µm. Ideal for critical gravimetric analysis, they are suitable for typical analytical precipitates such as barium sulfate, metastannic acid, and finely precipitated calcium carbonate.

• Category: Quantitative Filter Papers
• Weight: 100 g / m2
• Thickness: 0.20 mm
• Ash: 0.007 %
• Particle retention: 2.5 µm
• Type: Sorte 42
• Brand: Whatman
• Filtration speed: 1870 s
• UNSPSC 13.5: 41104929
• Filter type: filter circle
• Filtration time [s]: 1870
• Diameter [mm]: 42.5