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Cytiva Whatman Grade 4 No.4 Qualitative Filter Paper Series

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SKU
WH/GR4/1004
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Whatman Grade 4 Qualitative Filter Papers are standard grade high flow rate cellulose filter papers for fast filtration.

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Grouped product items
Product Name Qty
Grade 4 Circles, 27mm 400/pk SKU: WH/MA/AO/1004027 Available Qty: 0
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No. 4 Filter Circles 4.7cm/100 SKU: WH/MA/AO/1004047 Available Qty: 17
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Grade 4 Circles, 50mm 100/pk SKU: WH/MA/AO/1004050 Available Qty: 0
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No. 4 Filter Circles 7cm/100 SKU: WH/MA/AO/1004070 Available Qty: 3
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No. 4 Filter Circles 11cm/100 SKU: WH/MA/AO/1004110 Available Qty: 20
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No. 4 Filter Circles 12.5cm/100 SKU: WH/MA/AO/1004125 Available Qty: 196
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No. 4 Filter Circles 15cm/100 SKU: WH/MA/AO/1004150 Available Qty: -22
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No. 4 Filter Cirlces 18.5cm/100 SKU: WH/MA/AO/1004185 Available Qty: 37
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No. 4 Filter Circles 24cm/100 SKU: WH/MA/AO/1004240 Available Qty: 0
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No. 4 Filter Circles 27cm/100 SKU: WH/MA/AO/1004270 Available Qty: 0
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No. 4 Filter Circles 32cm/100 SKU: WH/MA/AO/1004320 Available Qty: 0
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No. 4 Filter Circles 40cm/100 SKU: WH/MA/AO/1004400 Available Qty: 0
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No. 4 Filter Circles 4.25cm/100 SKU: WH/MA/AO/1004042 Available Qty: 0
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No. 4 Filter Circles 5.5cm/100 SKU: WH/MA/AO/1004055 Available Qty: -8
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No. 4 Filter Circles 9cm/100 SKU: WH/MA/AO/1004090 Available Qty: 7
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Overview

Whatman Grade 4 Qualitative Filter Papers are a standard grade, high flow rate filter paper. They are useful in qualitative analytical separations when fast flow is required and the collection of fine particles is not critical.
These cellulose filters are used in qualitative analytical techniques to determine and identify materials (e.g., in air pollution monitoring)

 

Extremely high flow rate

  • Excellent retention: captures coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide
  • Fast filtration: useful for routine clean-up of biological fluids or organic extracts during analysis

Grade 4 Qualitative Filter Papers (20-25 µm particle retention) are available in a variety of sizes and formats including circles, sheets, and rolls. They are also available as prepleated filters, which give improved flow rate and increased loading capacity compared to equivalent flat filters.

 

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