Filtrerpapir
Filterpapir fremstillet af ren cellulose behandlet med saltsyre og flussyre er kvantitativt papir, der anvendes til filtrering med høj gennemstrømningshastighed og god tilbageholdelse. Det danner en semipermeabel barriere vinkelret på væske- eller luftstrømmen for at adskille fine stoffer fra væsker eller luft. Forskellige kvaliteter af filterpapir er tilgængelige til rutinemæssigt laboratoriearbejde, fra grov til fin filtrering af partikler.
Quantitative filter papers, ashless grades, grade 589/2 and 589/2 ½, Whatman™
Supplier: Whatman products (Cytiva)
Whatman Grade 589/2 filters from Cytiva are used in routine quantitative analyses, including analysis of aqueous suspension in paper, flour analysis, and sand content quantification.
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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.
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Qualitative filter papers, Grade 598 ½, Whatman™
Supplier: Whatman products (Cytiva)
A thick prepleated filter paper with high loading capacity. Combines medium retention with medium-fast to quick filtration speed.
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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.
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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.
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Qualitative filter papers, standard grades, grade 597 Optima, Whatman™
Supplier: Whatman products (Cytiva)
Standard Whatman grade filter paper for a variety of routine applications in food and beverage industries. Well-suited for determination of fat content in food or removal of carbon dioxide and turbidity from beverages such as beer.
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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%.
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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.
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Grade 0858 seed test paper, Whatman™
Supplier: Whatman products (Cytiva)
Grained, with medium fast flow rate and medium retention. A universal filter paper, used for the filtration of extracts, oils, beer, syrups etc.; also applied in filter presses or for the aspiration of liquids.
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Application specific filter papers, grade 512 ½, Whatman™
Supplier: Whatman products (Cytiva)
Low phosphate cellulose papers approximately 1,5 ppm phosphate, for the filtration of calcium lactate extracts from soil samples for the determination of K and P according to Egnér, Riehm and Lederle.
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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.
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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
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Application specific filter papers, grade 1450CV, Whatman™
Supplier: Whatman products (Cytiva)
Cellulose filter paper for identification of undissolved dyes in the textile industry.
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Quantitative filter papers, ashless grades, grade 41, Whatman™
Supplier: Whatman products (Cytiva)
Cytiva's Whatman Grade 41 environmental pollution papers are among the fastest filter papers in the Whatman ashless range. This gravimetric filter is well suited for quantitative analysis of soil and air.
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Grade 0858 ½ qualitative filter papers, Whatman™
Supplier: Whatman products (Cytiva)
Grained, with medium fast flow rate and medium retention. A universal filter paper, used for the filtration of extracts, oils, beer, syrups etc. Also applied in filter presses or for the aspiration of liquids.
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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%.
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