Grade 202 Cellulose Filter Paper, 12.5cm Circle, 100/Pk SKU: 5202-125

Qualitative Filter Paper - 5202-125

From student teaching labs to production QC departments, qualitative filter paper remains the workhorse for routine particle separation. Uniform pore distribution across the sheet area ensures consistent particle capture from center to edge during gravity filtration. 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

• Pure cellulose fiber construction delivers consistent flow rates and predictable retention for general sample clarification and preparation.
• Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.
• Wet strength sufficient for gentle handling during precipitate transfer while maintaining the rapid flow rates of qualitative grades.
• Particle retention rating of 15-19um defines the separation threshold for the application, determining which solids are captured and which pass through.
• Manufactured to a basis weight of 82g/m², each sheet delivers the documented mass consistency that gravimetric methods require.

If you're transitioning from qualitative screening to quantitative gravimetric work, the documented ash content above confirms this paper's suitability. To meet this need, consistent sheet-to-sheet performance reduces the variability your operators encounter during high-volume daily filtration workflows. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Dimensions

12.5cm x 100m

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

• Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.
• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• Pigment Screening - Separates undispersed colorant particles from coating formulations during color development and QC testing.
• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream analysis.