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- Filtration /
- Lab Filters /
- Qualitative Filter Paper
Product Description

Ashless Filter Papers - 180MM - Qualitative - Grade 4 - Fast - 20-25um

Specifications:
- Classification: Qualitative
- Ash Content: <0.1%
- Quantity per Pack: 100
- Diameter: 180mm (7.09")
Ashless quantitative and qualitative filter papers provide laboratory grade filtration for extraction systems and are specifically used in combination with a Buchner funnel to remove fats, waxes and any other unwanted contaminants from your solution. These filter papers are used in the pre-processing stage of short path distillation to clean up the material prior to processing.
Key Features:
- ISO 9001 Approved
- Manufactured from alpha-cellulose and cotton linters
- High Purity and low background
- Consistent performance
- Low ashless content: <0.1%
- Whatman equivalent quality
- Pre-Cut for ease of use
Grade | BIO-4 |
Particle Retention | 20um |
Appearance | Smooth |
Speed | Fast |
Ash Content (%) | <0.1 |
Basis Weight (g/m2) | 80.0±4.0 |
Wet burst (mm H2O) | >120 |
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