Whatman Grade 934-AH borosilicate glass microfiber filters feature a smooth surface with high retention efficiency and high flow rates for large-volume liquid filtration. Features: Smooth surface: provides efficient precipitate recovery High loading capacity: enables processing of turbid solutions High-grade borosilicate glass microfiber: withstands temperatures up to 550°C Nominal particle retention of 1.5 µm Low fiber shedding Whatman Grade 934-AH filters are well suited for large-volume filtration. Applications include cell harvesting, liquid scintillation counting, air pollution monitoring, and water pollution monitoring. Whatman Product Code 1827-047 Type Binder-Free Filter Media Borosilicate Glass Grade 934-AH Size 47 mm Diameter Typical Particle Retention in Liquid 1.5 µm Thickness 435 µm Maximum Operating Temperature 550 °C Basis Weight 64 g/m^2 Air Flow Rate 3.7 s/100 mL/in^2 Water Flow Rate 341 ml/min Format Circles Pack Size 100