Filtry jakościowe Grade 0858 1/2

Filtry ziarniste, o średnio-szybkim przepływie i średniej retencji. Uniwersalny papier stosowany do filtracji ekstraktów, olejów, piwa, syropów itp.; stosowany również w prasach filtracyjnych lub do odsysania cieczy.
Grained, with medium fast flow rate and medium retention. A universal filter paper, used for the filtration of extracts, oils, beer, syrups etc.; also applied in filter presses or for the aspiration of liquids.

• 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.

Available flat stock form as Grade 0858.
Grade Grade 0858 1/2 
Grade Type Folded (Prepleated) 
Particle Retention in Liquid Max. 12 µm
Typical Thickness 170 µm
Basis Weight 75 g/m2
Filtration Speed (Herzberg) Approx. 55 s
Material Cellulose 
Alpha Cellulose Content Min. 98%
Properties Medium fast; grained 
Application Used for the filtration of extracts; oils; beer; syrups etc.; also applied in filter presses or for the aspiration of liquids. 
Product Product Name Diameter
10334345 Grade 0858 1/2 qualitative filter paper; 150 mm 150 mm
10334347 Grade 0858 1/2 qualitative filter paper; 185 mm 185 mm
10334351 Grade 0858 1/2 qualitative filter paper; 240 mm 240 mm
10334352 Grade 0858 1/2 qualitative filter paper; 270 mm 270 mm
10334353 Grade 0858 1/2 qualitative filter paper; 320 mm 320 mm