Grade 2589 c Filter Paper for Technical Use, Sheet, 25x75mm, 100/Pk SKU: 10343876

Qualitative Filter Paper - 10343876

Gravity filtration methods for removing suspended solids require filter paper that seats cleanly in funnels and retains particles consistently. Controlled fiber density produces documented flow rate and retention characteristics that remain consistent across production lots. In sum, 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.
• Basis weight of 400g/m² indicates the fiber mass per unit area that controls retention, flow rate, and wet strength.
• Pure cellulose fiber construction delivers consistent flow rates and predictable retention for general sample clarification and preparation.
• Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.
• Particle retention rating of 4-8um defines the separation threshold for the application, determining which solids are captured and which pass through.

When your multi-site study requires comparable data across laboratories, papers manufactured to tight documented specifications ensure your results align. 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.

Dimensions

25 x 75mm

Flow Speed

Medium Slow

Folded/ Fluted/ Pleated

No

Grade

2589C

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Basis Weight (g/ m²)

400g/m²

Particle Retention

4-8um

Pore Size (µm)

6.0-12.0

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.
• Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.
• 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.