Grade 230 50CM 50/Pk SKU: 5230-500

Qualitative Filter Paper - 5230-500

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. Documented grade specifications provide laboratories with the technical data needed to select appropriate papers without preliminary testing.

Key Filter Paper Characteristics

• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.
• Rated at 25-30um particle retention, the fiber matrix provides a defined cutoff for consistent separation across analytical batches.
• Standard cellulose construction eliminates chemical treatment steps that could introduce background contamination in sensitive analytical methods.
• Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.
• Pure cellulose fiber construction delivers consistent flow rates and predictable retention for general sample clarification and preparation.

If your teaching or research laboratory processes high volumes of routine samples, the documented flow rates above translate directly to throughput. Wide retention range availability across the qualitative grade family lets you optimize each application in your sample preparation workflow. 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

50cm

Flow Speed

Fast

Folded/ Fluted/ Pleated

No

Grade

230

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Basis Weight (g/ m²)

123g/m²

Particle Retention

25-30um

Pore Size (µm)

25.0-30.0

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

Yes

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.
• Soil Extract Filtration - Clarifies soil slurries for nutrient and pH testing, removing fine particles that interfere with analysis.
• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• Pigment Screening - Separates undispersed colorant particles from coating formulations during color development and QC testing.
• Beverage Testing - Filters wine, beer, and juice samples before clarity and color measurements in food quality control laboratories.