Grade 3 Qualitative Filter Paper, Standard, 240mm Circle, 100/Pk SKU: 1003-240

Qualitative Filter Paper - 1003-240

Gravity filtration methods for removing suspended solids require filter paper that seats cleanly in funnels and retains particles consistently. Medium retention grades capture suspended solids while maintaining flow rates suitable for routine laboratory sample throughput requirements. In combination, controlled manufacturing delivers the documented retention, flow rate, and physical consistency that analytical and preparative filtration methods require.

Key Filter Paper Characteristics

• Non-strengthened paper is appropriate for routine gravity filtration where prolonged vacuum exposure is not part of the workflow.
• Nominal basis weight of 185g/m² reflects the fiber density that determines flow rate, retention, and mechanical handling characteristics.
• Controlled ash level of 0.06% meets the blank value requirements of quantitative methods where filter contribution must be documented.
• Pure cellulose fiber construction delivers consistent flow rates and predictable retention for general sample clarification and preparation.
• 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. Standard cellulose chemistry eliminates the need for specialized disposal procedures your general laboratory filtration generates. 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

240mm

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.
• Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
• Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream analysis.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.
• Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.