Niskopopiołowe filtry ilościowe - wzmocnione Grade 54

Filtry wytrzymałe w stanie mokrym o nominalnie podwyższonej retencji cząstek w porównaniu do innych filtrów przeznaczonych dla filtracji Büchnera. Umożliwiają szybką filtrację próżniową osadów gruboziarnistych.
GE’s Whatman Grade 54 filter paper has high wet strength and a larger nominal particle retention rating than comparable Büchner filtration papers, enabling fast vacuum filtration of coarse precipitates.

• 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.
Grade Grade 54 
Type Hardened low ash 
Typical Particle Retention in Liquid 22µm 
Nominal Thickness 185 µm
Typical water flow rate 453 ml/min 
Nominal Basis Weight 90 g/m2
Nominal Air Flow Rate 3 s/100 mL/in2
Nominal Ash Content 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. 
Product Product Name Dimensions
1454-055 Grade 54 Filter for Quantitative Analysis; Fast; 55 mm circle (100 pcs) fi 55 mm
1454-070 Grade 54 Filter for Quantitative Analysis; Fast; 70 mm circle (100 pcs) fi 70 mm
1454-090 Grade 54 Filter for Quantitative Analysis; Fast; 90 mm circle (100 pcs) fi 90 mm
1454-110 Grade 54 Filter for Quantitative Analysis; Fast; 110 mm circle (100 pcs) fi 110 mm
1454-125 Grade 54 Filter for Quantitative Analysis; Fast; 125 mm circle (100 pcs) fi 125 mm
1454-150 Grade 54 Filter for Quantitative Analysis; Fast; 150 mm circle (100 pcs) fi 150 mm
1454-185 Grade 54 Filter for Quantitative Analysis; Fast; 185 mm circle (100 pcs) fi 185 mm
1454-240 Grade 54 Filter for Quantitative Analysis; Fast; 240 mm circle (100 pcs) fi 240 mm
1454-320 Grade 54 Filter for Quantitative Analysis; Fast; 320 mm circle (100 pcs) fi 320 mm
1454-500 Grade 54 Filter for Quantitative Analysis; Fast; 500 mm circle (100 pcs) fi 500 mm
1454-917 Grade 54 Quantitative Filter Paper Hardened Low Ash; sheet; 460 × 570 mm 460 x 570 mm

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