No. 54 Filter Circles 18.5cm/100

Fast filters for vacuum filtration

• Higher nominal particle retention rating (22 µm) than comparable Buchner funnel filter papers
• Fast filtration speed (Herzberg filtration speed 39 s)
• High purity (0.015% ash maximum)
• Acid-treated for high wet-strength and chemical resistance
• Hardened to minimize fiber shedding

Whatman low ash hardened filter paper for quantitative analysis is available in three grades. All three are designed for use in gravity and vacuum suction filtration in Büchner and Hirsch funnels.

All Whatman quantitative hardened low ash filter papers can be customized for an exact fit.

Looking for a filter paper, membrane filter, or syringe filter Let Cytiva help you find the optimal filter for your needs to ensure reliable analysis.