Qualitative Filter Paper, Slow, 2-4 um, 125mm, 100/Pk SKU: CF15055

Qualitative Filter Paper - CF15055

Pre-filtering turbid samples before instrumental analysis needs a paper grade that removes interfering particles while maintaining reasonable flow rates. Routine quality control filtration across multiple product lines requires a filter paper that delivers consistent retention without batch-to-batch performance drift. In turn, standardized manufacturing protocols produce papers with retention and flow characteristics that remain constant from the first batch to the last.

Key Filter Paper Characteristics

• Particle retention rating of 2-4um defines the separation threshold for the application, determining which solids are captured and which pass through.
• Fine-pore matrix ensures thorough separation of small precipitates and fine suspensions for demanding quantitative recovery methods.
• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.
• Controlled ash level of ≤0.15% meets the blank value requirements of quantitative methods where filter contribution must be documented.
• Available in precut circles and sheet stock to match funnel sizes and custom cutting requirements across laboratory applications.

Reporting filtration parameters alongside your analytical results demands documented grade, retention, and lot traceability for reviewer confidence. In response, 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.

Capacity

350uL

Diameter

125mm

Flow Speed

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

2-4um

Pore Size (µm)

2.0-4.0

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Weight

0.53

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.
• 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.
• Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
• 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.