Grade 520 a 1/2 Qualitative Filter Paper Folded (Prepleated), 500mm, 100/Pk SKU: 10331456

Qualitative Filter Paper - 10331456

Gravity filtration setups require paper that wets uniformly, seats flat in funnels, and retains particles at the rated threshold. Controlled fiber density produces documented flow rate and retention characteristics that remain consistent across production lots. Altogether, quality-controlled production produces filter paper with the documented consistency that reproducible analytical and preparative methods demand.

Key Filter Paper Characteristics

• Compatible with standard glass and plastic filter funnels, qualitative paper integrates into existing gravity filtration setups without modification.
• Nominal retention of 15-18um provides the particle size cutoff appropriate for the analytical or preparative separation method.
• Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.
• Available in precut circles and sheet stock to match funnel sizes and custom cutting requirements across laboratory applications.
• Uniform fiber distribution across the sheet ensures consistent particle retention from edge to center for reproducible filtration results.

When your application makes the filter paper part of the measurement, the ash and weight specifications above define its analytical contribution. Predictable retention and flow rate from a pure cellulose matrix give you a dependable filtration baseline for routine sample preparation. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

Diameter

500mm

Flow Speed

Very Fast

Folded/ Fluted/ Pleated

Yes

Grade

520A

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Basis Weight (g/ m²)

90g/m²

Particle Retention

15-18um

Pore Size (µm)

15.0-18.0

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.
• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream 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.
• Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.