Sourced to meet strict specifications in technical applications, the Whatman Glass Fibre Filters 934-Ah, Ø 21 Mm are designed for fast, high loading performance. These filters, made from borosilicate glass 3.3, exhibit a typical thickness of 435 µm and an exceptional retention capacity of 1.5 µm for particles in liquid. With a weight of 70 g/m² and an airflow rate of 3.7 seconds per 100 milliliters per square inch, these filters are ideal for various filtration tasks, including the determination of total suspended solids in water, removal of turbidity, and filtration of bacterial cultures.

• Category: Glass- / Quartz Fibre Filters
• Filter type: filter circle
• Binding agent: without
• Material: borosilicate glass 3.3
• Particle retention in liquid: 1.5 µm
• Air flow: 3.7 s / 100 ml / in2
• Diameter [mm]: 21
• Description: fast, high loading
• Retention capacity [µm]: 1.5
• Weight: 70 g / m2
• UNSPSC 13.5: 41104929
• Brand: Whatman
• Typical thickness: 435 µm
• Filtration speed herzberg: 47 s