Appreciated for its predictable solubility and handling characteristics, the Grade 40 Circles, 47 mm, fall under the category of Quantitative Filter Papers. Manufactured by Whatman, these circles are particularly useful in gravimetric analysis of various components in cement, clay, iron, and steel products. They serve as a primary filter for separating solid matter from aqueous extracts in general soil analysis. Additionally, they are employed for quantitative determination of sediments in milk and as a pure analytical grade clean-up filter for solutions prior to AA analysis.

• Category: Quantitative Filter Papers
• Brand: Whatman
• UNSPSC 13.5: 41104929