Prepared for use in regulated laboratory conditions, the Filter Circles, Quantitative, Grade 42, Ashless, Dia.: 70 Mm are designed for critical gravimetric analysis. These filter circles, manufactured by Whatman, offer exceptional particle retention at 2.5 microns. With a weight of 100 grams per square meter and a thickness of 0.2 millimeters, they provide a robust filtration solution for typical analytical precipitates such as barium sulfate, metastannic acid, and finely precipitated calcium carbonate. Their Type Sorte 42 classification and filtration speed of 1870 seconds make them an ideal choice for quantitative analysis applications.

• Category: Quantitative Filter Papers
• Filter type: filter circle
• Ash: 0.007 %
• Diameter [mm]: 70
• Filtration speed: 1870 s
• Weight: 100 g / m2
• Thickness: 0.20 mm
• Particle retention: 2.5 µm
• Type: Sorte 42
• UNSPSC 13.5: 41104929
• Brand: Whatman
• Filtration time [s]: 1870