Grade 287 1/2 Qualitative Filter Papers

Opis produktu

Kieselguhr prepleated paper with a medium to slow flow rate and additional adsorption effect.

• 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.

Grade 287 ˝
Additional adsorption effect e.g. for the separation of very fine semi-colloidal turbidity, for clarifying milk serum, starch solutions, soil suspensions or sugar-containing solutions prior to polarimetry or refractometry. Also available in flat stock form as Grade 287.

Product 10310244: Discontinued. No new products will be manufactured after 30th September 2017. No alternative is available.

Specyfikacja

Grade	Grade 287 1/2
Grade Type	Folded (Prepleated)
Typical Thickness	360 µm
Basis Weight	154 g/m²
Filtration Speed (Herzberg)	Approx. 330 s
Properties	Kieselguhr
Application	For clarifying milk serum; starch solutions; soil suspensions or sugar-containing solutions prior to polarimetry or refractometry

Informacje do zamówienia

Product	Product Name	Diameter
10310244	Grade 287 1/2 Qualitative Filter Paper Folded (Prepleated); 125 mm	125 mm
10310245	Grade 287 1/2 Qualitative Filter Paper Folded (Prepleated); 150 mm	150 mm
10310247	Grade 287 1/2 Qualitative Filter Paper Folded (Prepleated); 185 mm	185 mm

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