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Filter papers - a guide

1 VWR International Filter papers - a Filter papers - standard gradeDo you use the best Filter for your filtration step? Do you want an improved flow or better retention? Try our Filter selector! Free samples available: Go to cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters. In addition, Whatman offers a range of wet strengthened qualitative filters that contain a small quantity of a chemically stable resin to give improved high wet strength.

determination of the sand content in foodstuffs acc. to Section 35 LMBG*; determination of the grade of flour; or analysis of aqueous suspensions in the paper industry. Grade 589/3: 2 μm ‘Blue Ribbon Filter’ – ashless standard filter paper for very fine precipitates (Class 2d acc. to DIN 53 135). Slow filter paper with

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Side Stream Filtration for Cooling Towers

www.energy.gov

pressure sand filters; Down to 0.45 microns for high efficiency sand filters Layers of granulated sand, trap particles as water moves through the sand layers Best for applications that require the removal of fine and low density particles Supplemental chlorine may be needed because sand filters can promote biological growth

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