Grade 1 Qualitative Filter Paper, Standard, 125mm Circle, 100/Pk SKU: 1001-125

Qualitative Filter Paper - 1001-125

Teaching laboratories introducing filtration techniques need a paper grade that produces reliable results while remaining cost-effective for student use. Uniform pore distribution across the sheet area ensures consistent particle capture from center to edge during gravity filtration. Taken together, from fiber selection through final inspection, the manufacturing process ensures every sheet meets the performance specifications of its grade.

Key Filter Paper Characteristics

• Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.
• Manufactured from high-purity cotton linters, qualitative filter paper provides a clean filtration surface with minimal fiber shedding.
• Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.
• Basis weight of 87g/m² indicates the fiber mass per unit area that controls retention, flow rate, and wet strength.
• Nominal ash content of 0.06% ensures minimal inorganic residue after ignition, protecting the accuracy of gravimetric determinations.

Reporting filtration parameters alongside your analytical results demands documented grade, retention, and lot traceability for reviewer confidence. Consistent sheet-to-sheet performance reduces the variability your operators encounter during high-volume daily filtration workflows. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

Diameter

125mm

Flow Speed

Medium

Folded/ Fluted/ Pleated

No

Grade

1

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

0.06%

Nominal Basis Weight (g/ m²)

87g/m²

Pack Count

100

Particle Retention

11um

Pore Size (µm)

11

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.
• Soil Extract Filtration - Clarifies soil slurries for nutrient and pH testing, removing fine particles that interfere with analysis.
• Botanical Extraction - Separates plant tissue debris from aqueous and solvent extracts during natural product preparation workflows.
• Pigment Screening - Separates undispersed colorant particles from coating formulations during color development and QC testing.
• 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.