Whatman® qualitative filter paper, Grade 4
circles, diam. 55 mm, pack of 100
DOWNLOAD MSDS (PDF)Synonym: Whatman filter, Whatman filters, Whatman paper, filter paper, filter papers, paper filter
Properties
| Related Categories | Filtration Supplies, Labware, Manufacturer Browser, Paper Filters, Qualitative, |
| material | circles |
| mfr. no. | Whatman Article No., 28414010 (US reference) |
| Whatman, 1004-055 | |
| packaging | pack of 100 |
| limit | 0.22 psi wet burst |
| 37 sec/100 mL speed (Herzberg) | |
| diam. | 55 mm |
Description
General description
These 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.
Grade 4: 20-25 μm
Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. Very useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis. Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.
Other Notes
Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.
Legal Information
Whatman is a registered trademark of GE Healthcare
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