Specifications Quantity 100/pk. Item Description A widely used standard grade filter paper for routine applications with medium retention and flow rate. It covers a wide range of laboratory applications and is frequently used for clarifying liquids. Grade Grade 1 For Use With (Application) Used filter paper for routine applications with medium retention and flow rate. Covers a wide range of laboratory applications and is frequently used for clarifying liquids. Porosity Medium Flow Rate 57mL/min. (water) Dimensions (L x W) Ø 150 mm Thickness 180 µm Description Grade 1 Qualitative Filter Paper Standard Grade, circle, 150 mm Diameter (Metric) 150 mm Material Cellulose Thickness (Metric) 180µm Particle Retention >11µm Format Circles Airflow Rate 13sec./100mL/sq. in. Basis Weight 87g/m2