Grade 3 Qualitative Filter Paper, Standard, 125mm Circle, 100/Pk SKU: 1003-125

Qualitative Filter Paper - 1003-125

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. From fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.

Key Filter Paper Characteristics

• Compatible with standard glass and plastic filter funnels, qualitative paper integrates into existing gravity filtration setups without modification.
• Ash content of 0.06% provides the documented blank value specification that quantitative analytical methods require.
• Manufactured from high-purity cotton linters, qualitative filter paper provides a clean filtration surface with minimal fiber shedding.
• Pure cellulose fiber construction delivers consistent flow rates and predictable retention for general sample clarification and preparation.
• Wet strength sufficient for gentle handling during precipitate transfer while maintaining the rapid flow rates of qualitative grades.

When your multi-site study requires comparable data across laboratories, papers manufactured to tight documented specifications ensure your results align. For applications like these, economical unit cost at the pack quantities routine laboratories consume keeps your filtration budget aligned with actual throughput demands. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

Diameter

125mm

Flow Speed

Slow

Folded/ Fluted/ Pleated

No

Grade

3

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

0.06%

Nominal Basis Weight (g/ m²)

185g/m²

Pack Count

100

Particle Retention

6um

Pore Size (µm)

6

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream analysis.
• Pigment Screening - Separates undispersed colorant particles from coating formulations during color development and QC testing.
• Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
• Gelatin Clarification - Removes debris from gelatin solutions used in pharmaceutical capsule manufacturing and quality testing.
• General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.