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Thumbnail Filmstrip of Cellulose Qualitative Filter Paper, Grade 05, 3.0um, 185mm, Very Slow, Nonsterile, 100/Pk Images
Featuring a low ash cellulose depth medium made of refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100%, this 185mm qualitative filter paper disc delivers the very slow flow and maximum fine particle retention of GVS Grade 05 (DXS05). With a nominal retention of 3.0um and an ash content of less than 0.06% that is not reduced by post-treatment, it provides clean, consistent clarification for demanding gravimetric and analytical workflows. Each box contains 100 discs.
Key Cellulose Media Characteristics
- Constructed from refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100% for diverse filtration properties.
- Very slow filtration speed, offering the lowest flow rate in the GVS qualitative range and the maximum degree of fine particle retention.
- Hydrophilic medium that wets readily for aqueous sample handling.
- Low ash content of less than 0.06%, supporting reliable qualitative analysis.
- Suited to difficult filtrations and extra fine-grained precipitates such as barium sulphate and cupreous oxide.
Key Construction Characteristics
- Material: qualitative cellulose filter paper (Grade 05 / DXS05).
- Diameter: 185mm disc format.
- Nominal retention: 3.0um.
- Sterility: Nonsterile.
- Pack: 100 discs per box.
This grade maintains fine particle retention under challenging conditions, making it a dependable choice for clarifying cloudy suspensions and recovering extra fine precipitates. The very slow flow profile favors thorough separation and sample clarity, supporting consistent, repeatable results across routine and analytical filtration tasks.
- Diameter
- 185mm
- Flow Speed
- Very Slow
- Grade
- 05 (DXS05)
- Hardened (Yes/ No)
- Yes
- Material
- Cellulose
- Nominal Ash Content (%)
- <0.06
- Pack Count
- 100
- Particle Retention
- 3.0um
- Pore Size (µm)
- 3
- Qualitative/ Quantitative
- Qualitative
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Whatman Equivalent
- Grade 5
- Clarification of Cloudy Suspensions The very slow flow and fine retention efficiently clarify turbid liquids and cloudy suspensions for downstream analysis.
- Fine Precipitate Recovery Captures extra fine-grained precipitates such as barium sulphate and cupreous oxide that pass through faster grades.
- Water and Soil Analysis Serves as a clarifying filter in environmental water and soil testing procedures.
- Wine and Beverage Clarification Often specified for clarifying wine and similar difficult-to-filter liquids.
- Qualitative Analytical Filtration Supports qualitative analytical separations where maximum fine particle retention is required.
- Difficult Filtration Conditions Handles challenging filtrations that demand the highest degree of particle retention in the qualitative range.