Cellulose Filters, Grade 54 Circles, ยี่ห้อ Whatman

รหัสสินค้า : 1454-xxx

Whatman Grade 54 hardened low ash quantitative filter paper for Büchner funnel and Hirsch funnel filtration enables fast vacuum suction filtration for recrystallization applications.

This hard, smooth, high wet-strength Grade 54 fast filter paper enables collection of coarse and gelatinous precipitates with minimal fiber shredding, even when wet.

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.

Grade : Grade 54 

Format : Circles 

Type : Hardened low ash 

Typical Particle Retention in Liquid1 : 22µm 

Nominal thickness : 185 µm

Typical water flow rate2 : 453 ml/min 

Nominal basis weight : 90 g/m²

Nominal air flow rate : 3 s/100 mL/in² 

Nominal Ash Content3 : 0.015% 

Material : High-quality cotton linters 

Alpha Cellulose Content Min. : ≥98% 

Application : Suitable for Büchner filtrations where it is desirable to recover the precipitate from the filter surface after filtration. High wet strength makes this grade very suitable for vacuum assisted fast filtration of ‘difficult’ coarse or gelatinous precipitates.