Whatman
Grade 2V Qualitative Filter Paper, Pre-Folded, 320mm Circle, 100/Pk SKU: 1202-320

Qualitative Filter Paper - 1202-320

From student teaching labs to production QC departments, qualitative filter paper remains the workhorse for routine particle separation. Natural cellulose wettability eliminates the pre-wetting step required by hydrophobic membranes in aqueous sample filtration. Altogether, lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.

Key Filter Paper Characteristics

• Standard qualitative cellulose filter paper provides reliable particle retention for gravity and vacuum filtration across routine laboratory workflows.
• Manufactured to a basis weight of 97g/m², each sheet delivers the documented mass consistency that gravimetric methods require.
• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.
• Wet strength sufficient for gentle handling during precipitate transfer while maintaining the rapid flow rates of qualitative grades.
• Medium porosity cellulose matrix captures suspended solids while maintaining the throughput needed for efficient batch processing.

If your teaching or research laboratory processes high volumes of routine samples, the documented flow rates above translate directly to throughput. To meet this need, predictable retention and flow rate from a pure cellulose matrix give you a dependable filtration baseline for routine sample preparation. 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

Medium

Folded/ Fluted/ Pleated

Yes

Grade

2V

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

0.06%

Nominal Basis Weight (g/ m²)

97g/m²

Pack Count

100

Particle Retention

8um

Pore Size (µm)

8

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.
• 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.
• Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.
• General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.
• Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.