Grade 520 bll 1/2 Filter Papers for Technical Use FF 240mm 50/Pk SKU: 10331551

Qualitative Filter Paper - 10331551

Separating precipitates from analytical solutions requires a cellulose matrix with the right balance of retention and flow rate. Pure cotton linter cellulose provides a uniform fiber matrix with consistent porosity and predictable retention across standard grade designations. In turn, documented grade specifications provide laboratories with the technical data needed to select appropriate papers without preliminary testing.

Key Filter Paper Characteristics

• Available in precut circles and sheet stock to match funnel sizes and custom cutting requirements across laboratory applications.
• At 15-19um rated retention, the fiber matrix captures particles above the threshold while allowing smaller materials to pass through.
• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.
• Compatible with standard glass and plastic filter funnels, qualitative paper integrates into existing gravity filtration setups without modification.
• Non-hardened paper balances effective particle retention with economical unit cost for high-volume routine laboratory use.

Maintaining accreditation requires documented traceability at every step, and the grade specifications above support your audit readiness. 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.

Diameter

240mm

Flow Speed

Very Fast

Folded/ Fluted/ Pleated

No

Grade

520B

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Basis Weight (g/ m²)

82g/m²

Particle Retention

15-19um

Pore Size (µm)

20

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream analysis.
• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
• 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.