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Thumbnail Filmstrip of Cellulose Qualitative Filter Paper, 5-7um, 55mm, Medium-Slow/Thick, Grade DMS03, 100/Pk Images
Featuring a thick, low-ash cellulose depth structure, this 55mm qualitative filter paper disc delivers medium-slow filtration with fine particle retention in the 5 to 7 micron range. Built to GVS Grade DMS03, the paper measures 320 microns thick with a nominal basis weight of 200 g/m2, roughly double the thickness of standard medium-grade qualitative paper. The added depth provides increased wet strength and an excellent loading capacity, making it well suited to liquids that are difficult to clarify. Each box contains 100 discs.
Key Cellulose Media Characteristics
- Manufactured from refined pulp and pure cotton linters with an alpha-cellulose content of nearly 100 percent.
- Low ash content of less than 0.06 percent, which is not reduced by post-treatment.
- Naturally hydrophilic surface that wets readily with aqueous solutions and common laboratory liquids.
- Fine particle retention in the 5 to 7 micron range with a medium-slow filtration speed.
- Extra thickness of 320 microns delivers higher wet strength and an excellent solute loading capacity.
Key Construction Characteristics
- Disc format, 55mm diameter, supplied 100 per box.
- Grade DMS03, medium-slow/thick qualitative classification.
- Nominal basis weight of 200 g/m2 and nominal thickness of 320 microns.
- Nonsterile for general analytical and routine laboratory filtration.
This grade maintains consistent retention and reliable flow when clarifying difficult samples such as essences, oils, and tinctures. The thick depth medium holds a high volume of precipitate without premature clogging, helping preserve sample integrity through demanding filtration runs. Suitable for folded use in analytical funnels as well as flat-bed filtration.
- Color
- White
- Diameter
- 55mm
- Flow Speed
- Medium-Slow
- Grade
- DMS03
- Hardened (Yes/ No)
- Yes
- Material
- Cellulose
- Mesh Format
- Disc
- Nominal Ash Content (%)
- <0.06
- Nominal Basis Weight (g/ m²)
- 200
- Nominal Thickness (µm)
- 320
- Pack Count
- 100
- Particle Retention
- 5-7 µm
- Pore Size (µm)
- 5-7
- Qualitative/ Quantitative
- Qualitative
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Clarification of Difficult Liquids The thick depth medium clarifies essences, oils, tinctures, and other liquids that are hard to filter while resisting premature clogging.
- Fine Precipitate Filtration Medium-slow flow with 5-7 micron retention captures fine precipitates during routine qualitative separations.
- Soil Analysis High loading capacity and wet strength support filtration of soil extracts and suspensions in agricultural and environmental labs.
- Food and Beverage Analysis Low-ash cellulose construction suits routine clarification and sample prep in food industry testing.
- Gravimetric Sample Loading The extra-thick, absorbent structure holds high solute loads, making it useful as a sample carrier in qualitative work.
- General Analytical Filtration Serves as a standard qualitative paper for identifying and determining materials across routine laboratory procedures.