Grade 2 Qualitative Filter Paper, Standard, 125mm Circle, 100/Pk SKU: 1002-125

Qualitative Filter Paper - 1002-125

Pre-filtering turbid samples before instrumental analysis needs a paper grade that removes interfering particles while maintaining reasonable flow rates. Pure cotton linter cellulose provides a uniform fiber matrix with consistent porosity and predictable retention across standard grade designations. In sum, controlled manufacturing delivers the documented retention, flow rate, and physical consistency that analytical and preparative filtration methods require.

Key Filter Paper Characteristics

• Pure cellulose fiber construction delivers consistent flow rates and predictable retention for general sample clarification and preparation.
• Manufactured to a basis weight of 97g/m², each sheet delivers the documented mass consistency that gravimetric methods require.
• Controlled ash level at 0.06% ensures inorganic residue after ignition remains within the acceptable range for gravimetric procedures.
• Standard basis weight and thickness specifications provide predictable packing density for volumetric calculations in gravity funnels.
• Uniform fiber distribution across the sheet ensures consistent particle retention from edge to center for reproducible filtration results.

If your laboratory runs standardized filtration protocols, the lot-level consistency of this filter paper protects your method reproducibility. To that end, predictable retention and flow rate from a pure cellulose matrix give you a dependable filtration baseline for routine sample preparation. 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

2

Hardened (Yes/ No)

No

Material

Cellulose Fiber

Nominal Ash Content (%)

0.06%

Nominal Basis Weight (g/ m²)

97g/m²

Particle Retention

8um

Pore Size (µm)

8

Qualitative/ Quantitative

Qualitative

Sterility

Nonsterile

Wet Strengthened (Yes/ No)

No

Wettability

Hydrophilic

• 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.
• Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
• Precipitation Recovery - Collects insoluble reaction products on the paper surface for subsequent washing and downstream analysis.
• Enzyme Clarification - Removes particulates from enzyme solutions before activity assays in biochemistry and industrial testing.
• General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.