Whatman™ Grade 43 Quantitative Ashless Filter Papers
Manufacturer: VWR International
Description
The filter’s core strength is its purity and specific application for instrumental analysis. It boasts a very low ash content (0.007% maximum), which is essential for accurate gravimetric measurements where combustion is required. The 16 µm particle retention is perfectly suited for general quantitative analysis, including foodstuffs analysis and soil analysis. Crucially, this filter is widely used for particle collection in air pollution monitoring specifically for subsequent analysis by X-Ray Fluorescence (XRF) techniques, proving its reliability in highly technical procedures.
Features:
- Ashless filter paper with very low ash content (0.007% maximum) for gravimetric analysis
- Medium/Coarse Porosity and Fast Flow Rate (155 s Herzberg) for quick filtration
- Ideal for particle collection in air pollution monitoring for subsequent XRF analysis
- Supports quantitative inorganic analysis in the construction, mining, and steel industries
- Intermediate particle retention rating of 16 µm
| SKU | Flow Rate | Retention | Shape | Porosity | Color |
|---|---|---|---|---|---|
| 28481-295 | Fast | 16 µm | Circle | Medium/Coarse | White |
| 28481-302 | Fast | 16 µm | Circle | Medium/Coarse | White |
| 70240-046 | Fast | 16 µm | Circle | Medium/Coarse | White |
| 28297-320 | Fast | 16 µm | Circle | Medium/Coarse | White |
|
Whatman™ Filter Paper Decision Chart | Download |
| SKU | Material | Thickness | Type | Grade | Basis Weight | Air Flow Rate |
|---|---|---|---|---|---|---|
| 28481-295 | Ashless | 220 µm | Quantitative | Grade 43 | 95 g/m2 | 11 s/100 mL/in2 |
| 28481-302 | Ashless | 220 µm | Quantitative | Grade 43 | 95 g/m2 | 11 s/100 mL/in2 |
| 70240-046 | Ashless | 220 µm | Quantitative | Grade 43 | 95 g/m2 | 11 s/100 mL/in2 |
| 28297-320 | Ashless | 220 µm | Quantitative | Grade 43 | 95 g/m2 | 11 s/100 mL/in2 |
Starting at $95.21
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