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Whatman™ Grade 3 Qualitative Filter Papers, Circles (100/PK)
Standard grade filter for use in Büchner funnels
As low as $26.89
| Part Number | 1003-Dxx-Series |
|---|---|
| Cross Reference(s) | - - - |
Product Overview
A standard grade filter used in qualitative analytical techniques to determine and identify materials. 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.
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).
Additional Information
| Part Number | 1003-Dxx-Series |
|---|---|
| Cross Reference(s) | - - - |
| Pack Size: | 100 pcs |
| Filter Paper Grade | Grade 3 |
| Application | For use in Büchner funnels. |
| Grade Type | Standard |
| Material | Cellulose |
| Nominal Ash Content | 0.06% |
| Nominal air flow rate | 26 s/100 ml/in² |
| Nominal basis weight | 185 g/m² |
| Nominal thickness | 390 µm |
| Properties | Thick |
| Typical Particle Retention in Liquid | 6 µm |
| Typical Trace Element Levels | Aluminium 3.6 µg/g Antimony <0.5 µg/g Arsenic <0.5 µg/g Barium <0.5 µg/g Boron <1 µg/g Calcium 27.5 µg/g Chromium 1 µg/g Copper 0.9 µg/g Iron 13.7 µg/g Lead <0.5 µg/g Magnesium 21 µg/g Manganese <0.5 µg/g Mercury <0.5 µg/g Potassium 6.2 µg/g Silicon 8.8 µg/g Sodium 32.3 µg/g Zinc 58.3 µg/g |
| Typical water flow rate at 45 psi (3.1 bar) | 28 ml/min |