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Featuring a low ash hardened cellulose medium made from refined pulp and pure cotton linters, these qualitative filter paper discs deliver fast filtration with an 8 to 12 micron particle retention range. Each 47 mm disc is built for routine analytical separations, capturing particulates within the depth of the cellulose fiber matrix while maintaining a high flow rate. Supplied 100 discs per box.
Key Cellulose Media Characteristics
- Manufactured from refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100 percent.
- Hydrophilic structure that wets readily with aqueous solutions and common laboratory liquids.
- Fast filtration speed paired with an 8 to 12 micron retention range for routine clarification.
- Low ash content of less than 0.06 percent, not reduced by post-treatment.
- Depth filtration traps particulates throughout the random cellulose fiber matrix for reliable particle capture.
Key Construction Characteristics
- 47 mm diameter circular disc format.
- Nominal thickness of 190 microns.
- Nominal weight of 85 grams per square meter.
- Wet bursting strength of 5 kPa for handling integrity during filtration.
- Nonsterile, packaged 100 circles per box.
These discs provide consistent, repeatable separations for qualitative analysis where residue weight accuracy is not required. The fast flow rate and hydrophilic cellulose structure support efficient clarification of liquids and routine sample preparation while protecting downstream steps from coarse particulates.
- Color
- White
- Diameter
- 47mm
- Flow Speed
- Fast
- Grade
- DME07
- Hardened (Yes/ No)
- Yes
- Material
- Cellulose
- Mesh Format
- Circle
- Nominal Ash Content (%)
- <0.06
- Nominal Basis Weight (g/ m²)
- 85
- Nominal Thickness (µm)
- 190
- Pack Count
- 100
- Particle Retention
- 8-12 µm
- Pore Size (µm)
- 8.0-12.0
- Qualitative/ Quantitative
- Qualitative
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Routine Qualitative Analysis Supports identification and determination of materials in liquid and gas samples where gravimetric accuracy is not required.
- Liquid Clarification Removes suspended particulates from aqueous solutions and common laboratory liquids at a fast flow rate.
- Soil and Seed Testing Serves as a general-purpose filter for agricultural soil analysis and seed testing procedures.
- Food and Beverage Analysis Separates solid foodstuffs from associated or extracting liquids in routine food industry techniques.
- Precipitate Filtration Captures fine precipitates such as lead sulphate, calcium oxalate, and calcium carbonate during routine laboratory work.
- Education and Teaching Labs Provides a dependable medium for teaching simple qualitative analytical separations.