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This grade covers a wide range of laboratory applications and is used for clarifying liquids and for rapid filtration of coarser precipitates such as lead sulfate, lead chromate, calcium oxalate, calcium carbonate, aluminum phosphate, barium carbonate and beryllium hydroxide.
This grade can be found in soil analysis, seed testing and in air pollution to collect dust-laden air and is also commonly used in the food industry to separate foodstuffs from associated liquid or extracting liquid
Qualitative grades of filter paper are recommended for use in analytical methods which determine or identify particulate
constituents of a mixture irrespective of the amount present.
Qualitative filter papers are often used in routine separation work that still requires high purity and consistent performance. These filter papers covers a wide range of laboratory applications, as fluids clarification, qualitative analytical separations for precipitates and buffers filtration, and are also used for soil analysis and in food and beverage testing.
Standard qualitative filter papers are suitable for quadrant folded or gravity flow application. These grades contain a high level of alpha-cellulose that provides high purity (ash content below 0.06%). The inherent strength of standard grades is suitable for routine quadrant folded applications but does not allow a use in vacuum work due to low wet resistance. Grade 3hw is recommended only for general purpose filtration due to a higher ash content (<0.1%) and lower filtration properties.
| Manufacturer | |
|---|---|
| Folded | Folded |
| Filter Grade | SF2F |
| Filter Size | 320mm |
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