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Thumbnail Filmstrip of Qualitative Filter Paper, Grade 5, Folded, 270mm, Hydrophilic, Nonsterile, 100/Pk Images
Featuring a hydrophilic cellulose depth medium configured as a Grade 5 qualitative filter paper, this 270mm prepleated (folded) disc delivers fine particle retention for clarifying difficult, cloudy solutions and isolating fine precipitates. The folded format opens directly into conical funnels, exposing additional surface area that postpones the normal slowdown caused by particulate loading and increases total loading capacity. Supplied in a pack of 100 nonsterile discs with a nominal basis weight of 65 g/m2.
Key Cellulose Media Characteristics
- Naturally hydrophilic cellulose medium that wets readily with aqueous samples.
- Grade 5 qualitative classification provides the maximum degree of fine particle retention in the qualitative range.
- Slow flow rate that is the trade-off for capturing the smallest particulates in difficult, cloudy suspensions.
- Depth-style structure suited to water analysis, soil analysis, and clarification of hard-to-filter liquids.
- Folded (prepleated) form exposes added surface area, increasing loading capacity and helping maintain flow.
Key Construction Characteristics
- Cellulose qualitative filter paper, Grade 5 classification.
- 270mm disc diameter in a folded (prepleated) format ready for conical funnels.
- Nominal basis weight of 65 g/m2.
- Supplied nonsterile in a pack of 100.
This filter paper provides consistent, reproducible clarification across routine and challenging samples while protecting downstream steps from fine particulate carryover. The self-supporting folded shape reduces contact with the funnel wall to help sustain flow throughout the run, supporting sample integrity from filtration to analysis.
- Color
- White
- Diameter
- 270mm
- Flow Speed
- Slow
- Folded/ Fluted/ Pleated
- Folded
- Grade
- Grade 5 (DXF55)
- Material
- Cellulose
- Nominal Basis Weight (g/ m²)
- 65
- Pack Count
- 100
- Qualitative/ Quantitative
- Qualitative
- Sterility
- Nonsterile
- Wettability
- Hydrophilic
- Clarification of Cloudy Suspensions The fine porosity of Grade 5 paper clarifies difficult, turbid solutions where finer particulate must be removed.
- Water Analysis Slow-flow, high-retention media captures fine particulates from water samples for downstream determination.
- Soil Analysis Retains fine precipitates and particulates encountered in soil extract filtration and agricultural testing.
- Fine Precipitate Recovery Isolates extra fine-grained precipitates such as barium sulphate encountered in chemical analysis.
- Wine and Beverage Clarification Often specified for clarification of wine and similar hard-to-filter liquids.
- High-Volume Funnel Filtration The 270mm folded format and large surface area suit batch filtration of heavily loaded samples in conical funnels.