Known for its stable chemical composition in standard conditions, the Quantitative Filter Paper, Grade 40, Ø 42.5 mm, falls under the category of Sorte 40 filter papers, manufactured by Whatman. This filter type, specifically designed as a filter circle, offers a medium filtration speed and retention, making it suitable for various applications such as gravimetric analysis of cement, clays, iron and steel products, and primary filtration for separating solid matter from aqueous extracts in general soil analysis. Additionally, it is used for quantitative determination of sediments in milk and as a clean-up filter for solutions prior to AA analysis.

• Category: Quantitative Filter Papers
• Brand: Whatman
• Diameter [mm]: 42.5
• Filter type: filter circle
• Type: Sorte 40
• UNSPSC 13.5: 41104929
• Filtration time [s]: 340