Grade 604 1/2 Qualitative Filter Papers for Coarse Precipitates FF 150mm 100/Pk SKU: 10312745

Qualitative Filter Paper - 10312745

Pre-filtering turbid samples before instrumental analysis needs a paper grade that removes interfering particles while maintaining reasonable flow rates. Medium retention grades capture suspended solids while maintaining flow rates suitable for routine laboratory sample throughput requirements. Quality-controlled production produces filter paper with the documented consistency that reproducible analytical and preparative methods demand.

Key Filter Paper Characteristics

• Non-strengthened grades deliver consistent retention at the economical price point that high-volume routine methods demand.
• Uniform fiber distribution across the sheet ensures consistent particle retention from edge to center for reproducible filtration results.
• Wet strength sufficient for gentle handling during precipitate transfer while maintaining the rapid flow rates of qualitative grades.
• Pure cellulose fiber construction delivers consistent flow rates and predictable retention for general sample clarification and preparation.
• Manufactured from high-purity cotton linters, qualitative filter paper provides a clean filtration surface with minimal fiber shedding.

If your teaching or research laboratory processes high volumes of routine samples, the documented flow rates above translate directly to throughput. To that end, wide retention range availability across the qualitative grade family lets you optimize each application in your sample preparation workflow. Secure your research outcomes by partnering with a filtration solution that understands your need for speed, accuracy, and reproducibility.

Diameter

150mm

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

• Soil Extract Filtration - Clarifies soil slurries for nutrient and pH testing, removing fine particles that interfere with analysis.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.
• Pigment Screening - Separates undispersed colorant particles from coating formulations during color development and QC testing.
• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream analysis.
• Beverage Testing - Filters wine, beer, and juice samples before clarity and color measurements in food quality control laboratories.