Cellulose filters are used in qualitative analytical techniques to determine and identify materials.
Prepleated qualitative filters are available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
-25%
| Variation Codes | 1006-090 |
|---|
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Qualitative Filter Papers – Grade 1: 11µm
Grade :Grade 1
Grade Type :Standard
Typical Particle Retention in Liquid1 :11 µm
Nominal Thickness :180 µm
Typical water flow rate2 :57 ml/min
Nominal Basis Weight :87 g/m²
Nominal Air Flow Rate :13 s/100 ml/in²
Nominal Ash Content :0.06%
Material :CelluloseFormat :Sheets
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Qualitative Filter Papers-Grade 93: 10 μm
Grade 93: 10 μm*
This filter paper is intermediate in speed and retention between Grades 1 and 4.Available in a dispenser pack, which can be attached to the wall or bench, placed on a
shelf either upright or flat, and used as a normal carton or as a convenient dispenser.The envelopes are released individually for easy one-at-a-time removal.
Package and envelopes are clearly marked for size and content.
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Quantitative Filter Papers-Grade Grade 50: 2.7μm
Grade 50: 2.7 μm*
Retention of very fine crystalline precipitates.The thinnest of all Whatman filter papers with a slow flow rate, these filters have a hardened and highly glazed surface, which also keeps the paper free from loose surface fibers.
Highly suitable for
qualitative or quantitative filtrations requiring vacuum assistance on Büchner
or 3-piece filter funnels.Very strong when wet and will withstand wet handling and
precipitate removal by scraping.In the electronics industry, the virtual absence of
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