Filtry jakościowe Grade 520 a ˝

Cienki papier o znakomitej wytrzymałości w stanie mokrym i bardzo wysokim przepływie. Często używany w zastosowaniach technicznych, takich jak filtracja lepkich cieczy i emulsji (np. słodzone soki, alkohole i syropy, roztwory żywic, oleje lub ekstrakty roślinne).
A thin paper with great wet strength and a very high flow rate. Frequently used in technical applications such as the filtration of viscous liquids and emulsions (e.g., sweetened juices, spirits and syrups, resin solutions, oils, or plant extracts).

• Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses.
• Decreased overall filtration time because of the extra surface area exposed; the normal slow down of filtration speed due to the loading of particulate is postponed.
• Increased total loading capacity as more filter area is available.
• Maintained flow rate due to the reduction in filter paper contact with funnel side and the self-supporting shape of the filter itself.
• The prepleating does not significantly affect any of the technical data, and the same figures may be used for the flat circles.

Time-saving Whatman qualitative grades are offered in this convenient form, which gives major advantages over flat circles.

Also available in flat stock form as Grade 520 a.
Filtry jakościowe Grade 520 a ½
Filtry jakościowe Grade 520 a ½
Grade Grade 520 a ½ 
Grade Type Folded (Prepleated) 
Particle Retention in Liquid Max. 18 µm
Typical Thickness 300 µm
Basis Weight 90 g/m2
Filtration Speed (Herzberg) Approx. 17.5 s
Material Cellulose 
Alpha Cellulose Content Min. 98%
Properties Very fast; creped; high wet strength 
Application Frequently used in technical applications such as the filtration of viscous liquids and emulsions. 
Product Product Name Diameter
10331451 Grade 520 a ½ Qualitative Filter Paper Folded (Prepleated); 240 mm 240 mm
10331456 Grade 520 a ½ Qualitative Filter Paper Folded (Prepleated); 500 mm 500 mm
10331494 Grade 520 a ˝ Qualitative Filter Paper Folded (Prepleated), 450 mm 450 mm
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