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Thumbnail Filmstrip of Cellulose Qualitative Filter Paper Discs, 8.0-12.0um, 125mm, Fast, Hardened, 100/Pk Images
Featuring a hardened, low-ash cellulose medium made from refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100%, these 125mm qualitative filter paper discs deliver fast filtration for routine analytical and clarification work. The DME07 grade provides a nominal particle retention range of 8.0 to 12.0 microns, combining a rapid flow rate with reliable separation of coarse to medium precipitates. Each disc is acid-hardened for high wet strength, and the box contains 100 circles for everyday laboratory use.
Key Cellulose Media Characteristics
- Hardened, low-ash construction: Acid-hardened cellulose with an ash content of less than 0.06% that is not reduced by post-treatment, supporting clean, reproducible results.
- Nearly 100% alpha-cellulose: Manufactured from refined pulp and pure cotton linters for consistent, well-defined filtration properties.
- Fast filtration speed: The DME07 standard grade maintains a rapid flow rate suited to high-throughput routine filtration.
- 8.0 to 12.0 micron nominal retention: Captures coarse and medium precipitates while allowing liquid to pass quickly.
- High wet strength: Hardened structure resists tearing and handling stress during wet filtration.
Key Construction Characteristics
- Format: Pre-cut circular disc, 125mm diameter.
- Material: Qualitative cellulose (hardened, ashless grade DME07).
- Pack: 100 discs per box, nonsterile.
This grade covers a wide range of laboratory applications and is frequently used for clarifying liquids and for qualitative analytical separations in routine laboratory work. The fast flow rate and durable hardened structure maintain consistent throughput and sample integrity across repeated filtration tasks.
- Diameter
- 125mm
- Flow Speed
- Fast
- Folded/ Fluted/ Pleated
- No
- Grade
- DME07
- Hardened (Yes/ No)
- Yes
- Material
- Cellulose
- Mesh Format
- Circle
- Nominal Ash Content (%)
- <0.06
- Pack Count
- 100
- Particle Retention
- 8.0-12.0 um
- Pore Size (µm)
- 8.0-12.0
- Qualitative/ Quantitative
- Qualitative
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Liquid Clarification Rapidly clarifies cloudy aqueous solutions and laboratory liquids while retaining coarse to medium particulates.
- Qualitative Analytical Separations Supports routine qualitative analysis to determine and identify materials in everyday lab work.
- Soil Analysis and Seed Testing Serves agricultural laboratories performing soil analysis and seed testing procedures.
- Food Industry Filtration Separates solid foodstuffs from associated or extracting liquids in routine food testing.
- Air Pollution Monitoring Collects atmospheric dust from airflow using circles for photometric stain-intensity measurement.
- General Routine Filtration Handles a broad range of fast, high-throughput laboratory filtration tasks where residue weight accuracy is not required.