Qualitative Filter Paper - 10347519
Pre-filtering turbid samples before instrumental analysis needs a paper grade that removes interfering particles while maintaining reasonable flow rates. Standard basis weight specifications provide predictable filter packing density for volumetric displacement calculations in funnel assemblies. Lot-level verification of retention, thickness, and ash content ensures predictable performance when scaling from method development to routine analysis.
Key Filter Paper Characteristics
- Smooth surface finish supports clear visual inspection of retained material and clean separation from the collected filtrate.
- Available in precut circles and sheet stock to match funnel sizes and custom cutting requirements across laboratory applications.
- Particle retention rating of 8-12um defines the separation threshold for the application, determining which solids are captured and which pass through.
- Uniform fiber distribution across the sheet ensures consistent particle retention from edge to center for reproducible filtration results.
- Basis weight of 44g/m² indicates the fiber mass per unit area that controls retention, flow rate, and wet strength.
When your multi-site study requires comparable data across laboratories, papers manufactured to tight documented specifications ensure your results align. 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 Slow
- Folded/ Fluted/ Pleated
- No
- Grade
- Shark Skin
- Hardened (Yes/ No)
- No
- Material
- Cellulose Fiber
- Nominal Basis Weight (g/ m²)
- 44g/m²
- Particle Retention
- 8-12um
- Pore Size (µm)
- 8.0-12.0
- Qualitative/ Quantitative
- Qualitative
- Sterility
- Nonsterile
- Wet Strengthened (Yes/ No)
- Yes
- Wettability
- Hydrophilic
- Paint and Coatings QC - Removes gels and undispersed pigment from coating samples prior to color measurement and viscosity testing.
- Teaching Laboratory - Provides consistent and economical filtration media for student exercises in analytical and general chemistry.
- Beverage Testing - Filters wine, beer, and juice samples before clarity and color measurements in food quality control laboratories.
- General Clarification - Removes suspended solids from aqueous solutions by gravity filtration for routine sample preparation.
- Polymer Filtration - Clears particulates from polymer solutions before molecular weight determination by viscometry or GPC.
- Lysate Clarification - Separates cellular debris from crude lysates before downstream chromatographic or electrophoretic analysis.