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Made of pure cellulose treated with hydrochloric and hydrofluoric acid, filter papers are used for straining with good retention and flow rates. These cellulose filters create a semi-permeable barrier perpendicular to a liquid or airflow in order to separate fine substances from liquids or air. Different grades of filter paper are available for performing various laboratory applications including routine lab work, ranging from coarse to fine filtration of particulates. VWR offers a wide range of qualitative and quantitative filter papers with varying pore size, particle retention, flow rate and filtration times.
Description:
15.0cm diameter. More retentive, slower, and more absorbent than Grade 1 Filter Paper by Whatman*. For general-purpose lab applications, monitoring specific contaminants in the atmosphere, and soil testing. Medium porosity. Medium flow rate. 8um particle retention.
Description:
11.0cm diameter. For rapid filtering with excellent retention of coarse particles and gelatinous precipitates. Good rapid filter for cleanup of biological fluids or organic extracts. For air pollution monitoring. Coarse porosity. Fast flow rate. 20-25um particle retention.
Description:
11.0cm diameter. Hardened. For fast filtration of gelatinous precipitates and coarse particles from alkaline/acid solutions during gravimetric analysis. High wet-strength, high purity. Coarse porosity. Fast flow rate. 20-25um particle retention.
Description:
Very popular, thin filter paper, medium-fast with medium to fine particle retention. Used for many routine analytical applications in different industries,
Description:
24.0cm diameter. Slightly grained surface. Moderately thick. Highly absorbent. Highly suitable for use in Buchner funnels. Medium porosity. Medium flow rate. 6um particle retention.
Description:
18.5cm diameter. Hardened. For fast filtration of gelatinous precipitates and coarse particles from alkaline/acid solutions during gravimetric analysis. High wet-strength, high purity. Coarse porosity. Fast flow rate. 20-25um particle retention.
Description:
For electrophoresis and blotting procedures. White surface. Flow Rate: 130mm/30 minutes (water). Paper Thickness: 0.34mm. Sheet Size: 18x34cm.
Description:
A medium fast filter paper with medium to fine particle retention. Used for a wide variety of analytical routine applications in different industries like food testing
Description:
For electrophoresis and blotting procedures. White surface. Flow Rate: 130mm/30 minutes (water). Paper Thickness: 0.34mm. Sheet Size: 10.2x13.3cm.
Description:
12.5cm diameter. Creped wood pulp paper. Thin, hardened, high wet-strength paper is resistant to weak acids and alkalis. Recommended for general and high-volume process filtration. Medium porosity. Medium flow rate. 8-12um particle retention.
Description:
Quantitative Filter Paper Ashless (Ash 0.007%), circle, 42.5 mm, Grade 41, for gravimetric analysis and the preparation of samples for instrumental analysis. They are available in three formats designed to meet specific needsm, pack100
Description:
15cm diameter. Very smooth surface suitable for food and beverage industries. Medium porosity. Medium-fast flow rate. 4-7um particle retention.
Description:
24.0cm diameter. For gravimetric analyses of cement, clay, iron, and steel, as a primary filter in soil analysis, for determination of sediment in milk, and to clean prior to AA spectrophotometry. Medium porosity. Medium flow rate. 8um particle retention.