Whatman 1001 055 Quantitative Filter Paper Circles, 11 Micron, 10.5 s/100mL/sq inch Flow Rate, Grade 1, 55mm Diameter (Pack of 100)

5.5cm Grade 1 Covers a wide range of laboratory applications; frequently used for clarifying liquids Areas of use include the food industry, agriculture, air pollution monitoring, and gas detection Widely used in education for teaching simple qualitative analytical separations