Qualitative Filter Paper - 10314844
Gravity filtration setups require paper that wets uniformly, seats flat in funnels, and retains particles at the rated threshold. Medium retention grades capture suspended solids while maintaining flow rates suitable for routine laboratory sample throughput requirements. In practice, controlled manufacturing delivers the documented retention, flow rate, and physical consistency that analytical and preparative filtration methods require.
Key Filter Paper Characteristics
- Manufactured from high-purity cotton linters, qualitative filter paper provides a clean filtration surface with minimal fiber shedding.
- Pure cellulose fiber construction delivers consistent flow rates and predictable retention for general sample clarification and preparation.
- Strengthening treatment preserves paper structure through extended filtration runs where continuous wetting would weaken standard grades.
- Medium porosity cellulose matrix captures suspended solids while maintaining the throughput needed for efficient batch processing.
- Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.
If your laboratory runs standardized filtration protocols, the lot-level consistency of this filter paper protects your method reproducibility. Addressing this directly, economical unit cost at the pack quantities routine laboratories consume keeps your filtration budget aligned with actual throughput demands. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.
- Diameter
- 125mm
- Flow Speed
- Medium
- Folded/ Fluted/ Pleated
- Yes
- Grade
- 1574
- Hardened (Yes/ No)
- No
- Material
- Cellulose Fiber
- Nominal Basis Weight (g/ m²)
- 90 g/m²
- Particle Retention
- 7-12um
- Pore Size (µm)
- 7.0-12.0
- Qualitative/ Quantitative
- Qualitative
- Sterility
- Nonsterile
- Wet Strengthened (Yes/ No)
- Yes
- Wettability
- Hydrophilic
- Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
- Beverage Testing - Filters wine, beer, and juice samples before clarity and color measurements in food quality control laboratories.
- Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.
- Soil Extract Filtration - Clarifies soil slurries for nutrient and pH testing, removing fine particles that interfere with analysis.
- Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
- Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.