Qualitative Filter Paper - 10313951
Pre-filtering turbid samples before instrumental analysis needs a paper grade that removes interfering particles while maintaining reasonable flow rates. Cellulose fiber matrix maintains structural integrity through standard gravity and light vacuum filtration conditions. Accordingly, standardized manufacturing protocols produce papers with retention and flow characteristics that remain constant from the first batch to the last.
Key Filter Paper Characteristics
- Standard qualitative cellulose filter paper provides reliable particle retention for gravity and vacuum filtration across routine laboratory workflows.
- Nominal basis weight of 75g/m² reflects the fiber density that determines flow rate, retention, and mechanical handling characteristics.
- 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.
- Uniform fiber distribution across the sheet ensures consistent particle retention from edge to center for reproducible filtration results.
When your analytical procedure specifies a particular grade, the retention and purity characteristics documented above confirm method compliance. For this application, 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
- 240mm
- Flow Speed
- Medium Fast
- Folded/ Fluted/ Pleated
- Yes
- Grade
- 2555
- Hardened (Yes/ No)
- No
- Material
- Cellulose Fiber
- Nominal Basis Weight (g/ m²)
- 75g/m²
- Particle Retention
- 7-12um
- Pore Size (µm)
- 7.0-12.0
- Qualitative/ Quantitative
- Qualitative
- Sterility
- Nonsterile
- Wet Strengthened (Yes/ No)
- No
- Wettability
- Hydrophilic
- Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
- Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.
- Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
- Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.
- General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.
- Soil Extract Filtration - Clarifies soil slurries for nutrient and pH testing, removing fine particles that interfere with analysis.