Qualitative Filter Paper, Medium Slow, 6 um, 125mm, 100/Pk SKU: CF15048

Qualitative Filter Paper - CF15048

Laboratories processing dozens of samples daily need a qualitative filter paper that performs reliably from the first sheet to the last. Routine quality control filtration across multiple product lines requires a filter paper that delivers consistent retention without batch-to-batch performance drift. Taken together, quality-controlled production produces filter paper with the documented consistency that reproducible analytical and preparative methods demand.

Key Filter Paper Characteristics

• Standard qualitative cellulose filter paper provides reliable particle retention for gravity and vacuum filtration across routine laboratory workflows.
• Designed for methods requiring better particle discrimination than general grades without the slow throughput of fine papers.
• Medium porosity cellulose matrix captures suspended solids while maintaining the throughput needed for efficient batch processing.
• Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.
• At 80±5g/m² nominal basis weight, the filter medium provides the mass uniformity needed for reproducible gravimetric determinations.

If you're transitioning from qualitative screening to quantitative gravimetric work, the documented ash content above confirms this paper's suitability. To meet this need, 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.

Capacity

350uL

Diameter

125mm

Flow Speed

Medium Slow

Folded/ Fluted/ Pleated

No

Hardened (Yes/ No)

No

Material

Cellulose

Nominal Ash Content (%)

≤0.15%

Nominal Basis Weight (g/ m²)

80±5g/m²

Pack Count

100

Particle Retention

6um

Pore Size (µm)

6

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Weight

0.53

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
• 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.
• Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.
• Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.