Qualitative Filter Paper, Medium Slow, 6 um, 70mm, 100/Pk SKU: CF15045

Qualitative Filter Paper - CF15045

Laboratories processing dozens of samples daily need a qualitative filter paper that performs reliably from the first sheet to the last. Gravity filtration setups require paper that wets uniformly, seats flat in funnels, and retains particles at the rated threshold. Taken together, controlled manufacturing delivers the documented retention, flow rate, and physical consistency that analytical and preparative filtration methods require.

Key Filter Paper Characteristics

• Non-strengthened grades deliver consistent retention at the economical price point that high-volume routine methods demand.
• Unmodified cellulose surface provides natural hydrophilic properties for rapid wetting in aqueous filtration applications.
• Wet strength sufficient for gentle handling during precipitate transfer while maintaining the rapid flow rates of qualitative grades.
• Available in precut circles and sheet stock to match funnel sizes and custom cutting requirements across laboratory applications.
• At 6um rated retention, the fiber matrix captures particles above the threshold while allowing smaller materials to pass through.

Whether your method requires simple clarification or precise gravimetric determination, the documented specifications above define what this paper delivers. In these cases, consistent sheet-to-sheet performance reduces the variability your operators encounter during high-volume daily filtration workflows. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

Capacity

350uL

Diameter

70mm

Flow Speed

Medium Slow

Folded/ Fluted/ Pleated

No

Hardened (Yes/ No)

No

Material

Cellulose

Nominal Ash Content (%)

≤0.15%

Nominal Basis Weight (g/ m²)

80±5g/m²

Pack Count

100

Particle Retention

6um

Pore Size (µm)

6

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Weight

0.26

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.
• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
• Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.
• Beverage Testing - Filters wine, beer, and juice samples before clarity and color measurements in food quality control laboratories.
• Soil Extract Filtration - Clarifies soil slurries for nutrient and pH testing, removing fine particles that interfere with analysis.