Made available in multiple packaging formats for flexible procurement, these Quantitative Filter Circles, Grade 40, are designed for applications requiring medium filtration speed and retention. Ideal for gravimetric analysis of various components in cement, clay, iron, and steel products, they serve as primary filters for separating solid matter from aqueous extracts in general soil analysis. Additionally, they are suitable for quantitative determination of sediments in milk and as a clean-up filter for solutions prior to AA analysis. These filter circles, manufactured by Whatman, have a diameter of 185 mm and offer a filtration time of approximately 340 seconds.

• Category: Quantitative Filter Papers
• Brand: Whatman
• Diameter [mm]: 185
• Type: Sorte 40
• Filtration time [s]: 340
• UNSPSC 13.5: 41104929
• Filter type: filter circle