Grade 1 Qualitative Filter Paper, Standard, 25mm Circle, 100/Pk SKU: 1001-325

Qualitative Filter Paper - 1001-325

General clarification and sample preparation workflows require a cellulose filter paper with predictable performance across varying sample types. Available in circles, sheets, and prefolded formats to match specific funnel geometries and sample processing workflows. For this reason, certificate of conformance documentation accompanies each lot, providing traceability for quality systems and regulatory audit requirements.

Key Filter Paper Characteristics

• Rated at 11um particle retention, the fiber matrix provides a defined cutoff for consistent separation across analytical batches.
• Pure cellulose fiber construction delivers consistent flow rates and predictable retention for general sample clarification and preparation.
• Manufactured from high-purity cotton linters, qualitative filter paper provides a clean filtration surface with minimal fiber shedding.
• Ash content of 0.06% provides the documented blank value specification that quantitative analytical methods require.
• Standard qualitative cellulose filter paper provides reliable particle retention for gravity and vacuum filtration across routine laboratory workflows.

When your quality system requires documented specifications for every consumable, the grade data above provides the traceability your auditors expect. For this purpose, economical unit cost at the pack quantities routine laboratories consume keeps your filtration budget aligned with actual throughput demands. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

Diameter

25mm

Flow Speed

Medium

Folded/ Fluted/ Pleated

No

Grade

1

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

0.06%

Nominal Basis Weight (g/ m²)

87g/m²

Particle Retention

11um

Pore Size (µm)

11

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.
• Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
• Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.
• Pigment Screening - Separates undispersed colorant particles from coating formulations during color development and QC testing.
• Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.