WHA1003070
Whatman® qualitative filter paper, Grade 3
circles, diam. 70 mm, pack of 100
Synonym(s):
Whatman filter, Whatman filters, Whatman paper, Z240419, filter paper, filter papers, paper fitler
About This Item
material
cellulose filters
circles
packaging
pack of 100
manufacturer/tradename
Whatman 1003-070
Whatman Article No. 28413985 (US reference)
parameter
0.40 psi wet burst
325 sec/100 mL speed (Herzberg)
diam.
70 mm
thickness
390 μm
ash
≤0.06%
pore size
6 μm (Particle retention)
basis weight
185 g/m2
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General description
Grade 3: 6 µm
Double the thickness of Grade 1 with still finer particle retention and excellent loading capacity; more precipitate can be held without clogging. The extra thickness gives increased wet strength and makes this grade highly suitable for use in Büchner funnels. The high absorbency is particularly valuable when the paper is used as a sample carrier. This filter is also available in the FilterCup. This is a convenient, disposable 70 mm filter funnel with a 250 ml capacity molded from polypropylene with an integral, heat bonded filter (catalog number 1600-003).
Features and Benefits
- For use in büchner funnels.
- Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
Other Notes
Legal Information
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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