Grade 597 Qualitative Filter Paper Standard Grade, Circle, 185mm, 100/Pk SKU: 10311814

Qualitative Filter Paper - 10311814

Teaching laboratories introducing filtration techniques need a paper grade that produces reliable results while remaining cost-effective for student use. Uniform pore distribution across the sheet area ensures consistent particle capture from center to edge during gravity filtration. In combination, rigorous quality control at every production stage ensures physical properties align with published grade specifications before distribution.

Key Filter Paper Characteristics

• Rated at 4-7um particle retention, the fiber matrix provides a defined cutoff for consistent separation across analytical batches.
• Available in precut circles and sheet stock to match funnel sizes and custom cutting requirements across laboratory applications.
• Pure cellulose without strengthening additives ensures the lowest possible extractable background for sensitive analytical methods.
• Manufactured from high-purity cotton linters, qualitative filter paper provides a clean filtration surface with minimal fiber shedding.
• Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.

If your laboratory runs standardized filtration protocols, the lot-level consistency of this filter paper protects your method reproducibility. In these cases, consistent sheet-to-sheet performance reduces the variability your operators encounter during high-volume daily filtration workflows. 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

185mm

Flow Speed

Medium Fast

Folded/ Fluted/ Pleated

No

Grade

597

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Basis Weight (g/ m²)

85g/m²

Pack Count

100

Particle Retention

4-7um

Pore Size (µm)

4.0-7.0

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.
• Soil Extract Filtration - Clarifies soil slurries for nutrient and pH testing, removing fine particles that interfere with analysis.
• Beverage Testing - Filters wine, beer, and juice samples before clarity and color measurements in food quality control laboratories.
• 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.
• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.