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Whatman™ Grade 1 Qualitative Filter Papers, Circles (100/PK)
Standard grade medium flow rate cellulose filter papers
As low as $12.37
| Part Number | 1001-Dxx-Series |
|---|---|
| Cross Reference(s) | - - - |
Product Overview
Whatman Grade 1 Qualitative Filter Papers are the most widely used filter paper for routine laboratory applications, qualitative analytical separations, and clarifying liquids. They are the standard grade cellulose filter papers for medium flow rates.
- Qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate
- Agricultural soil analysis and seed testing procedures
- Industrial food processing techniques to extract liquid or separate solid foodstuffs from associated liquid
- Air pollution monitoring by collecting atmospheric dust from airflow and photometrically measuring the stain-intensity
- Gas detection by quantitative chromogenesis with optical reflectance
Medium flow rate and retention for a wide range of qualitative analytical separations
Grade 1 Qualitative Filter Papers (11 µm particle retention) are available in a variety of sizes and formats including circles, sheets and prepleated filters. They are also available in FilterCup format, a convenient, 250 ml capacity disposable 70 mm filter funnel molded from polypropylene with an integral, heat-bonded filter.
Additional Information
| Part Number | 1001-Dxx-Series |
|---|---|
| Cross Reference(s) | - - - |
| Pack Size: | 100 pcs |
| Filter Paper Grade | Grade 1 |
| Application | Used filter paper for routine applications with medium retention and flow rate. Covers a wide range of laboratory applications and is frequently used for clarifying liquids. |
| Grade Type | Standard |
| Material | Cellulose |
| Nominal Ash Content | 0.06% |
| Nominal air flow rate | 13 s/100 ml/in² |
| Nominal basis weight | 87 g/m² |
| Nominal thickness | 180 µm |
| Typical Particle Retention in Liquid | 11 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) | 57 ml/min |