Answer
Nov 11, 2025 - 05:10 PM
Grade 1 and Grade 2 filter papers mainly differ in their pore sizes and filtration speeds. For example, a 2 micron filter paper like the USA Lab Qualitative Filter Paper provides very fine retention, ideal for capturing small particles and achieving high purity, though at a slower filtration rate. In contrast, Grade 2 filter papers have larger pores, allowing for quicker filtration but lower retention efficiency, making them suitable for coarse precipitates or less critical separations.
