Grade 8 Qualitative Filter Paper, Ruled, 75mm Circle, 100/Pk SKU: 10347033

Qualitative Filter Paper - 10347033

General clarification and sample preparation workflows require a cellulose filter paper with predictable performance across varying sample types. Uniform pore distribution across the sheet area ensures consistent particle capture from center to edge during gravity filtration. In practice, standardized manufacturing protocols produce papers with retention and flow characteristics that remain constant from the first batch to the last.

Key Filter Paper Characteristics

• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.
• Standard qualitative cellulose filter paper provides reliable particle retention for gravity and vacuum filtration across routine laboratory workflows.
• Wet strength sufficient for gentle handling during precipitate transfer while maintaining the rapid flow rates of qualitative grades.
• Available in precut circles and sheet stock to match funnel sizes and custom cutting requirements across laboratory applications.
• Pure cellulose fiber construction without hardening treatment ensures minimal chemical background in filtered samples.

If your environmental monitoring program depends on sample comparability to determine trends, the production consistency of this filter paper protects your data validity. In this context, predictable retention and flow rate from a pure cellulose matrix give you a dependable filtration baseline for routine sample preparation. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Diameter

75mm

Folded/ Fluted/ Pleated

No

Grade

8 Ruled

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Basis Weight (g/ m²)

65g/m²

Particle Retention

4-8um

Pore Size (µm)

20.0-30.0

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Beverage Testing - Filters wine, beer, and juice samples before clarity and color measurements in food quality control laboratories.
• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream analysis.
• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.
• General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.
• Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.