Qualitative Filter Paper, Medium Slow, 6 um, 90mm, 100/Pk SKU: CF15046

Qualitative Filter Paper - CF15046

Pre-filtering turbid samples before instrumental analysis needs a paper grade that removes interfering particles while maintaining reasonable flow rates. Routine laboratory filtration demands a filter paper that delivers consistent particle retention without slowing sample throughput. Rigorous quality control at every production stage ensures physical properties align with published grade specifications before distribution.

Key Filter Paper Characteristics

• Unmodified cellulose surface provides natural hydrophilic properties for rapid wetting in aqueous filtration applications.
• Standard wet strength is sufficient for conventional Buchner funnel and gravity filtration setups at moderate sample volumes.
• Manufactured from high-purity cotton linters, qualitative filter paper provides a clean filtration surface with minimal fiber shedding.
• Ash content of ≤0.15% provides the documented blank value specification that quantitative analytical methods require.
• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.

When your application makes the filter paper part of the measurement, the ash and weight specifications above define its analytical contribution. For this purpose, economical unit cost at the pack quantities routine laboratories consume keeps your filtration budget aligned with actual throughput demands. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Capacity

350uL

Diameter

90mm

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

0.13

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.
• Pigment Screening - Separates undispersed colorant particles from coating formulations during color development and QC testing.
• Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.
• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream analysis.
• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.