Qualitative Filter Paper - 10311652
Laboratories processing dozens of samples daily need a qualitative filter paper that performs reliably from the first sheet to the last. Available in circles, sheets, and prefolded formats to match specific funnel geometries and sample processing workflows. As a result, each sheet reflects production standards where fiber density, thickness, and retention characteristics are verified before lot release.
Key Filter Paper Characteristics
- Uniform fiber distribution across the sheet ensures consistent particle retention from edge to center for reproducible filtration results.
- Nominal retention of 4-7um provides the particle size cutoff appropriate for the analytical or preparative separation method.
- Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.
- Compatible with standard glass and plastic filter funnels, qualitative paper integrates into existing gravity filtration setups without modification.
- Wet strength sufficient for gentle handling during precipitate transfer while maintaining the rapid flow rates of qualitative grades.
Whether your method requires simple clarification or precise gravimetric determination, the documented specifications above define what this paper delivers. In this context, consistent sheet-to-sheet performance reduces the variability your operators encounter during high-volume daily filtration workflows. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.
- Diameter
- 270mm
- Flow Speed
- Medium Fast
- Folded/ Fluted/ Pleated
- Yes
- Grade
- 595
- Hardened (Yes/ No)
- No
- Material
- Cellulose Fiber
- Nominal Basis Weight (g/ m²)
- 68g/m²
- Particle Retention
- 4-7um
- Pore Size (µm)
- 4.0-7.0
- Qualitative/ Quantitative
- Qualitative
- Sterility
- Nonsterile
- Wet Strengthened (Yes/ No)
- No
- Wettability
- Hydrophilic
- Beverage Testing - Filters wine, beer, and juice samples before clarity and color measurements in food quality control laboratories.
- Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
- Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.
- Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
- Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
- General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.