Grade 3 Qualitative Filter Paper, Standard, 320mm Circle, 100/Pk SKU: 1003-320

Qualitative Filter Paper - 1003-320

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. Certificate of conformance documentation accompanies each lot, providing traceability for quality systems and regulatory audit requirements.

Key Filter Paper Characteristics

• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.
• Basis weight of 185g/m² indicates the fiber mass per unit area that controls retention, flow rate, and wet strength.
• Wet strength sufficient for gentle handling during precipitate transfer while maintaining the rapid flow rates of qualitative grades.
• Nominal retention of 6um provides the particle size cutoff appropriate for the analytical or preparative separation method.
• Standard qualitative cellulose filter paper provides reliable particle retention for gravity and vacuum filtration across routine laboratory workflows.

Your sample preparation workflow benefits from a filter paper whose performance is defined, documented, and consistent from one purchase to the next. Rapid wetting and uniform pore distribution reduce the setup time your operators spend preparing each filtration run. Take control of your sample preparation variables and ensure that your data reflects the true nature of your work, rather than the quality of your consumables.

Diameter

320mm

Flow Speed

Slow

Folded/ Fluted/ Pleated

No

Grade

3

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

0.06%

Nominal Basis Weight (g/ m²)

185g/m²

Pack Count

100

Particle Retention

6um

Pore Size (µm)

6

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.
• Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.
• Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.
• 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.