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Thumbnail Filmstrip of Cellulose Qualitative Filter Paper, Grade 05, Extra Slow, 3um Retention, 150mm, 100/Pk Images
Featuring a refined cellulose medium built from pure cotton linters with an alpha-cellulose content near 100%, this Grade 05 qualitative filter paper delivers the maximum degree of fine particle retention in the qualitative range. Each 150mm disc provides a nominal retention of 3um with an extra slow flow rate, making it suited to the most demanding clarification and precipitate capture work. The paper carries a low ash content and is supplied nonsterile in packs of 100 discs.
Key Cellulose Media Characteristics
- Manufactured from refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100% for clean, consistent filtration.
- Grade 05 (DXS05) provides the lowest flow rate and finest retention in the qualitative range for maximum capture of fine particles.
- Nominal particle retention of 3um targets extra fine-grained precipitates and difficult-to-clarify samples.
- Low ash content minimizes contamination, with ash levels controlled through the base manufacturing rather than post-treatment.
- Naturally hydrophilic structure wets readily for gravity and funnel filtration.
Key Construction Characteristics
- Circular disc format measuring 150mm in diameter for use in standard funnels and Buchner setups.
- Cellulose construction compatible with conventional glass and plastic filter funnels.
- Supplied nonsterile in a pack of 100 discs.
The extra slow flow and fine retention of this grade deliver reliable separation of fine precipitates and turbid suspensions where clarity matters most. Consistent disc dimensions and a uniform cellulose matrix support reproducible results across routine and difficult filtrations while protecting downstream analyses from particulate carryover.
- Diameter
- 150mm
- Flow Speed
- Extra Slow
- Folded/ Fluted/ Pleated
- No
- Grade
- 05 (DXS05)
- Material
- Cellulose
- Mesh Format
- Circle
- Pack Count
- 100
- Particle Retention
- 3um
- Pore Size (µm)
- 3
- Qualitative/ Quantitative
- Qualitative
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Fine Precipitate Filtration Captures extra fine-grained precipitates such as barium sulphate and cupreous oxide that pass through coarser qualitative grades.
- Difficult Clarification Handles filtration under very difficult conditions where samples are hard to clarify and require the slowest flow rate.
- Wine Clarification Clarifies cloudy wine and similar liquids that demand maximum fine particle removal.
- Qualitative Analysis Supports qualitative analytical techniques used to determine and identify materials.
- Cloudy Suspension Clarifying Serves as a clarifying filter for turbid suspensions in water and soil analysis workflows.
- Gravity and Funnel Filtration Integrates into standard glass and plastic funnel setups for routine laboratory separations.