Description
Cytiva Whatman Grade 4 Qualitative Filter Paper, Fast Flow Rate, 4.7 cm, 1004-047
Features:
- Used in qualitative analytical techniques to determine and identify materials (e.g., in air pollution monitoring)
- Offers excellent retention, 20-25 µm particle retention — captures coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide
- Fast filtration — useful for routine clean-up of biological fluids or organic extracts during analysis
- Available in variety of sizes and formats (circles, sheets, rolls pre-pleated)
Specifications:
| Application | Used when high flow rates in air pollution monitoring are required and collection of fine particles is not critical |
| Diameter | 47 mm |
| Grade | Grade 4 |
| Grade Type | Standard |
| Material | Cellulose |
| Nominal Ash Content | 0.06% |
| Nominal air flow rate | 4 s/100 ml/in2 |
| Nominal basis weight | 92 g/m2 |
| Nominal thickness | 210 µm |
| Typical Particle Retention in Liquid | 25 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) | 247 mL/min |
Specifications
| Manufacturer | Cytiva |
|---|---|
| Model No | 1004-047 |