Qualitative Filter Paper, Fast, 20-25 um, 150mm, 100/Pk SKU: CF15028

Qualitative Filter Paper - CF15028

Teaching laboratories introducing filtration techniques need a paper grade that produces reliable results while remaining cost-effective for student use. Separating precipitates from analytical solutions requires a cellulose matrix with the right balance of retention and flow rate. On this basis, from fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.

Key Filter Paper Characteristics

• Available in precut circles and sheet stock to match funnel sizes and custom cutting requirements across laboratory applications.
• Standard cellulose without surface treatment delivers reliable performance for applications where chemical hardening is not required.
• Controlled ash level at ≤0.15% ensures inorganic residue after ignition remains within the acceptable range for gravimetric procedures.
• Fast drainage through the cellulose matrix minimizes the wait time between sample additions during sequential filtration.
• Standard qualitative cellulose filter paper provides reliable particle retention for gravity and vacuum filtration across routine laboratory workflows.

If your laboratory runs standardized filtration protocols, the lot-level consistency of this filter paper protects your method reproducibility. For this purpose, cotton linter cellulose provides the clean fiber background your general analytical methods need without the cost of specialty grades. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

Capacity

2mL

Diameter

150mm

Flow Speed

Fast

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

20-25um

Pore Size (µm)

20.0-25.0

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Weight

0.58

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• 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.
• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
• Pigment Screening - Separates undispersed colorant particles from coating formulations during color development and QC testing.
• General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.