Grade 604 1/2 Qualitative Filter Papers for Coarse Precipitates FF 320mm 100/Pk SKU: 10312753

Qualitative Filter Paper - 10312753

Gravity filtration methods for removing suspended solids require filter paper that seats cleanly in funnels and retains particles consistently. Pure cotton linter cellulose provides a uniform fiber matrix with consistent porosity and predictable retention across standard grade designations. Altogether, from fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.

Key Filter Paper Characteristics

• Wet strength sufficient for gentle handling during precipitate transfer while maintaining the rapid flow rates of qualitative grades.
• At 80g/m² nominal basis weight, the paper provides the mass uniformity needed for reproducible gravimetric determinations.
• Standard construction delivers adequate wet strength for conventional filtration while maintaining economical cost for routine applications.
• Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.
• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.

Whether your method requires simple clarification or precise gravimetric determination, the documented specifications above define what this paper delivers. Meeting this challenge, standard cellulose chemistry eliminates the need for specialized disposal procedures your general laboratory filtration generates. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Diameter

320mm

Flow Speed

Fast

Folded/ Fluted/ Pleated

Yes

Grade

604

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Basis Weight (g/ m²)

80g/m²

Pack Count

100

Particle Retention

25um

Pore Size (µm)

25

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• Soil Extract Filtration - Clarifies soil slurries for nutrient and pH testing, removing fine particles that interfere with analysis.
• Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
• Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.
• Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.