Grade 113V Pre-Pleated Filter Paper, Wet-Strengthened, 320mm Circle, 100/Pk SKU: 1213-320

Qualitative Filter Paper - 1213-320

From student teaching labs to production QC departments, qualitative filter paper remains the workhorse for routine particle separation. Controlled fiber density produces documented flow rate and retention characteristics that remain consistent across production lots. Ultimately, standardized manufacturing protocols produce papers with retention and flow characteristics that remain constant from the first batch to the last.

Key Filter Paper Characteristics

• Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.
• Standard construction provides the soft, conformable surface that seats properly in gravity filtration funnels without edge leakage.
• Medium porosity cellulose matrix captures suspended solids while maintaining the throughput needed for efficient batch processing.
• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.
• Manufactured to a basis weight of 125g/m², each sheet delivers the documented mass consistency that gravimetric methods require.

When your multi-site study requires comparable data across laboratories, papers manufactured to tight documented specifications ensure your results align. For exactly this reason, broad grade availability lets you match retention, flow rate, and thickness to each specific application in your method library. 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

Fast

Folded/ Fluted/ Pleated

Yes

Grade

113V

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Basis Weight (g/ m²)

125g/m²

Particle Retention

30um

Pore Size (µm)

30

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

Wettability

Hydrophilic

• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.
• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.
• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream analysis.
• 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.