Grade 54 Filter for Quantitative Analysis, Fast, Circle & Sheet

Description

Acid-treated for high wet-strength and chemical resistance
Large nominal particle retention rating of 22 µm
Fast filtration speed (Herzberg filtration speed 39 s)
High purity (0.015% ash maximum)
Compatible with Büchner funnel or Hirsch funnel applications

GE Healthcare’s Life Sciences business offers three grades of low ash hardened filter paper for quantitative analysis. All three are designed for use in gravity and vacuum/suction filtration in Büchner and Hirsch funnel applications and can be customized for an exact fit.

Fast filters for vacuum filtration

Whatman Grade 54 filter paper can sustain fast vacuum or suction filtration in a Büchner or Hirsch funnel. The hard, smooth, acid-treated Grade 54 fast filter paper supports collection of coarse and gelatinous precipitates with minimal fiber shredding, even when wet.

Parameter	Grade 54 Filter for Quantitative Analysis, Fast, Circle & Sheet
Grade :	Grade 54
Type :	Hardened low ash
Typical Particle Retention in Liquid¹:	22 µm
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.
Format & Dimensions :	Circle – Ø55 mm, Ø70 mm, Ø90 mm, Ø110 mm, Ø125 mm, Ø150 mm, Ø185 mm, Ø240 mm, Ø320 mm, Ø500 mm Sheet – 460 x 570 mm
Pack Size :	100 pieces