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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Whatman
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
fiber shedding is utilized in carriers for integrated circuits.This grade is also available in Smear Tab format for wipe testing (e.g. testing of
surfaces for radionuclide contamination).SKU: n/a -
Whatman
Mixed Cellulose Ester Membranes-Plain ME 24, Gridded
Whatman gridded filters have clearly defined grid lines spaced at 3.1 or 5 mm intervals.
The special ink used is nontoxic and completely
free from bacterial growth inhibitors.Whatman black mixed cellulose esters are available plain for automatic colony
counting applications, as well as gridded to assist in manual counting procedures.Black membranes provide contrast between residue or cell colors and the filter
without having to counter-stain the membrane.SKU: n/a -
Whatman
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
Dimensions :580 x 680 mm (22 x 26 in)
Pack size :100 piecesSKU: n/a -
Whatman
Glass Microfiber Filters-Binder Free Glass Microfiber Filters-Grade GF/A (1.6 μm)
Grade GF/C: 1.2 μm*
Combines fine particle retention with good flow rate.
The standard filter in many
parts of the world for the collection of suspended solids in potable water and natural
and industrial wastes.Fast and efficient clarification of aqueous liquids containing
low to medium levels of fine particulates.Widely used for cell harvesting, liquid scintillation counting, and binding assays where more loading capacity is required.
SKU: n/a
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