Whatman
Grade 202 Cellulose Filter Paper, 24 cm Circle, 100/Pk SKU: 5202-240

Qualitative Filter Paper - 5202-240

Routine quality control filtration across multiple product lines requires a filter paper that delivers consistent retention without batch-to-batch performance drift. Cellulose fiber matrix maintains structural integrity through standard gravity and light vacuum filtration conditions. To this end, rigorous quality control at every production stage ensures physical properties align with published grade specifications before distribution.

Key Filter Paper Characteristics

• Compatible with standard glass and plastic filter funnels, qualitative paper integrates into existing gravity filtration setups without modification.
• Wet strength sufficient for gentle handling during precipitate transfer while maintaining the rapid flow rates of qualitative grades.
• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.
• Pure cellulose fiber construction delivers consistent flow rates and predictable retention for general sample clarification and preparation.
• Resin-bonded fiber structure resists progressive weakening that causes standard papers to fail during extended vacuum filtration cycles.

Reporting filtration parameters alongside your analytical results demands documented grade, retention, and lot traceability for reviewer confidence. Specifically, standard qualitative construction integrates into your existing funnel hardware, requiring no new equipment investment for reliable results. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Diameter

24cm

Flow Speed

Medium

Folded/ Fluted/ Pleated

No

Grade

202

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Basis Weight (g/ m²)

82g/m²

Particle Retention

15-19um

Pore Size (µm)

2.2

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
• Soil Extract Filtration - Clarifies soil slurries for nutrient and pH testing, removing fine particles that interfere with analysis.
• Pigment Screening - Separates undispersed colorant particles from coating formulations during color development and QC testing.
• Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.
• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.