You searched for: Carta da filtro
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.
Qualitative filter papers, wet strengthened grades, grade 1574 and 1574 ½, Whatman™
Supplier: Whatman products (Cytiva)
Medium fast cellulose filter paper with high wet strength. This paper has the same chemical resistance characteristics as Grade 1573.
Expand 4 Items
Grade 2589 A filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A fast to medium fast filter with high wet strength offering medium retention.
Expand 2 Items
Grade 2589 C filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
Thick filter with medium to slow filtration speed, high wet strength, and good retention for smaller particles.
Expand 1 Items
Grade 114 qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin.
Expand 7 Items
Seed testing papers, grade 181, Whatman™
Supplier: Whatman products (Cytiva)
Grade 181 support filter for seed tests using copenhagen tank system.
Expand 1 Items
Qualitative filter papers, standard grades, grade 597 and 597¹/₂, Whatman™
Supplier: Whatman products (Cytiva)
Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analyses.
Expand 24 Items
Qualitative filter papers, grade 598, Whatman™
Supplier: Whatman products (Cytiva)
A thick filter paper with high loading capacity. Combines medium retention with medium-fast to fast filtration speed.
Expand 3 Items
Grade 113 qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
Ultra high loading capacity with a particle retention well suited for use with coarse or gelatinous precipitates.
Expand 10 Items
Whatman™ Grade 5V Qualitative Filter Papers, Fluted
Supplier: Whatman products (Cytiva)
Whatman Grade 5V fine particle filter retains particles as small as 2,5 µm for qualitative analysis
Expand 2 Items
Qualitative filter papers, technical, smooth, grade 3 S/h
Supplier: Sartorius
These smooth filter papers are made of refined pulp and linters with more than 95% alpha-cellulose content. The ash content of these filter papers is between 0,1 and 0,15%.
Expand 12 Items
Application specific filter papers, grade 72, Whatman™
Supplier: Whatman products (Cytiva)
Grade 72 activated carbon air filter paper is designed for air pollution monitoring of radioactive iodine in medical and nuclear installations.
Expand 3 Items
Qualitative filter papers, wet strengthened grades, grade 1575, Whatman™
Supplier: Whatman products (Cytiva)
Slow cellulose filter papers with high wet strength. This grade has the same chemical resistance characteristics as Grade 1573.
Expand 2 Items
Grade 4V qualitative filter papers, fluted, Whatman™
Supplier: Whatman products (Cytiva)
Whatman Grade 4V filter paper is well suited for qualitative analysis or general filtration of coarse particles. The fluted filter design increases filtration speed, flow rate, and loading capacity.
Expand 6 Items
Grade 2589 D filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A very thick filter with high wet strength. Offers medium to slow flow rate and retains very fine precipitates.
Expand 2 Items
Grade 602 h qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
A standard grade filter esed in sample preparation, e.g., in the beverage industry for residual sugar determination, acidic spectra, refractometric analysis, and HPLC.
Expand 4 Items
Qualitative filter papers, standard grades, grade 594 ¹/₂, Whatman™
Supplier: Whatman products (Cytiva)
These cellulose filters are used in qualitative analytical techniques to determine and identify materials. A standard grade filter paper for fine precipitates.
Expand 1 Items
Grade shark skin filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
Whatman Grade Shark Skin filter papers are a creped filter paper that is commonly used to remove impurities in a variety of applications.
Expand 14 Items
Qualitative filter papers, standard grades, grade 593 ¹/₂, Whatman™
Supplier: Whatman products (Cytiva)
These cellulose filters are used in qualitative analytical techniques to determine and identify materials. A standard grade filter paper for fine precipitates.
Expand 2 Items
Qualitative filter papers, technical, smooth, grade 4 b
Supplier: Sartorius
These smooth filter papers are made of refined pulp and linters with more than 95% alpha-cellulose content. The ash content of these filter papers is between 0,1 and 0,15%.
Expand 20 Items
Qualitative filter papers, grade 802, Whatman™
Supplier: Whatman products (Cytiva)
A prepleated filter for use with a conical filter funnel, offers fast filtration and high loading capacity for analysis involving coarse particles or gelatinous precipitates.
Expand 7 Items
Grade 520 bII filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A thick paper with high wet strength offering a very high flow rate.
Expand 1 Items
Qualitative filter papers, wet strengthened grades, grade 91, Whatman™
Supplier: Whatman products (Cytiva)
Filtro con superficie crespata per analisi quotidiane meno critiche. Ampiamente utilizzato per analizzare il saccarosio nello zucchero di canna e in laboratori farmaceutici per procedure di filtrazione quotidiane.
Expand 9 Items
Grade 2294 filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
A very thick filter card with high wet strength. Offers very high flow rate and retains medium to coarse particles.
Expand 3 Items
Qualitative filter papers, technical, smooth, grade C 140
Supplier: Sartorius
These smooth filter papers are made of refined pulp and linters with more than 95% alpha-cellulose content. The ash content of these filter papers is between 0,1 and 0,15%.
Expand 5 Items
Grade 0903 filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
Thin filter paper with smooth surface. Offers medium to slow flow rate and good retention for small particles.
Expand 1 Items
VWR® Low Nitrogen Content Filters, Grade 521
Supplier: VWR Collection
Low nitrogen content filters for determination of nitrogen content in steel and iron samples dissolved in acid. Filtration of fine precipitates to dissolve according Kjeldahl method.
Expand 1 Items
Application specific filter papers, grade 0790 ½, Whatman™
Supplier: Whatman products (Cytiva)
Acid washed cellulose filter paper with ash content of approximately 0,01%, low magnesium, for the determination of trace elements (Mg, Mn, Co, Cu, Mo, B).
Expand 2 Items
Grade 3 qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels.
Expand 11 Items
Grade 520 bII ½ filter papers for technical use, Whatman™
Supplier: Whatman products (Cytiva)
Grade 520bll ½ thick, pleated filter paper with high wet strength offering a very high flow rate.
Expand 5 Items
Qualitative filter papers, grade 202, Whatman™
Supplier: Whatman products (Cytiva)
A general qualitative filter with creped surface. Faster than grade 201 and retains large crystalline coarse particles. Widely used in industrial laboratories and students laboratories for routine filtration.