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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, standard grades, grade 597 Optima, Whatman™

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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Grade 595 ½ qualitative filter papers, Whatman™

Grade 595 ½ qualitative filter papers, Whatman™

Supplier: Whatman products (Cytiva)

A prepleated filter used for many routine analytical applications in different industries (e.g., particle separation from food extracts or filtration of solids from digested environmental samples, e.g., for ICP/AAS analysis).

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Quantitative filter papers, ashless grades, grade 589/2 and 589/2 ½, Whatman™

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 520 bII filter papers for technical use, Whatman™

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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VWR®, Carta per separazione di fase, grado 511

VWR®, Carta per separazione di fase, grado 511

Supplier: VWR Collection

Carta da filtro idrofobica utilizzata per la separazione di soluzioni acquose da soluzioni organiche.

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Quantitative filter papers, hardened ashless grades, grade 391

Quantitative filter papers, hardened ashless grades, grade 391

Supplier: Ahlstrom-Munksjö

These quantitative ashless hardened filter papers are recommended for use where a high purity is required for quantitative analysis.

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Filter papers for wine laboratories

Filter papers for wine laboratories

Supplier: Ahlstrom-Munksjö

These filter papers are suitable for use in wine laboratories.

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High purity qualitative filter paper

High purity qualitative filter paper

Supplier: Ahlstrom-Munksjö

Ahlstrom-Munksjö’s 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 liquids clarification, qualitative analytical separations for precipitates and buffers filtration, and are also used for soil analysis and in food and beverage testing. Wet-strengthened grades contain a reinforcement agent that increases their resistance to rupture when wet, such as in vacuum filtration, and their resistance when filtering acidic solutions.

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Ashless quantitative filter papers

Ashless quantitative filter papers

Supplier: Ahlstrom-Munksjö

Ahlstrom-Munksjö manufactures a series of extremely high purity, acid washed filter papers designed for use in analytical and gravimetric analysis. The quantitative grades are manufactured from top quality cotton linters using ultra-pure, deionised water and are further treated with dilute acid to remove any remaining organic and inorganic impurities. All quantitative grades are manufactured in a strictly controlled environment that ensures high uniformity and high purity from filter to filter.

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Qualitative filter papers, technical, smooth, grade 3 w

Qualitative filter papers, technical, smooth, grade 3 w

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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Filter papers for soil analysis

Filter papers for soil analysis

Supplier: Ahlstrom-Munksjö

These papers are used to determine the presence of trace elements and nutrients in soil samples to optimise plant growth.

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Qualitative filter papers, technical, smooth, grade 100/N

Qualitative filter papers, technical, smooth, grade 100/N

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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Filter paper for special applications

Filter paper for special applications

Supplier: Ahlstrom-Munksjö

These filter papers for suitable for special applications.

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Seed testing papers, Munktell

Seed testing papers, Munktell

Supplier: Ahlstrom-Munksjö

Seed Testing Papers are widely used by seed testing institutes and others for germination capacity testing and for health tests e.g. Jacobsen (Copenhagen tank), on top of paper and osmosis test.

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Carte da filtro in farina fossile, grado 470

Carte da filtro in farina fossile, grado 470

Supplier: Sartorius

Grade 470 papers are made of cellulose and diatomaceous earth and offer a much better separating capability than pure cellulose papers at the same rate of filtration.

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High purity qualitative filter paper

High purity qualitative filter paper

Supplier: Ahlstrom-Munksjö

These 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 cover a wide range of laboratory applications, as liquids clarification, qualitative analytical separations for precipitates and buffers filtration, and are also used for soil analysis and in food and beverage testing. Wet-strengthened grades contain a reinforcement agent that increases their resistance to rupture when wet, such as in vacuum filtration, and their resistance when filtering acidic solutions.

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Filter papers for breweries

Filter papers for breweries

Supplier: Ahlstrom-Munksjö

Ahlstrom-Munksjö offers filters for malt analysis and malt filtration according to MEBAK, ASBC and EBC standards.

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Quantitative filter papers, hardened ashless grades, grade 392

Quantitative filter papers, hardened ashless grades, grade 392

Supplier: Ahlstrom-Munksjö

These quantitative ashless hardened filter papers are recommended for use where a high purity is required for quantitative analysis.

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Qualitative filter papers, technical, smooth, grade 3 hw

Qualitative filter papers, technical, smooth, grade 3 hw

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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Qualitative filter papers, technical, smooth, grade 6

Qualitative filter papers, technical, smooth, grade 6

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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Industrial Filter Papers

Industrial Filter Papers

Supplier: Ahlstrom-Munksjö

The following filter papers fulfill specific technical requirements corresponding to the requirements mentioned overleaf. Embossed filter papers have a larger surface area and, therefore, correspondingly shorter filtration times. They show a very homogenous and fine pore structure.

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High purity hardened qualitative filter paper

High purity hardened qualitative filter paper

Supplier: Ahlstrom-Munksjö

Ahlstrom-Munksjö’s 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 liquids clarification, qualitative analytical separations for precipitates and buffers filtration, and are also used for soil analysis and in food and beverage testing. Wet-strengthened grades contain a reinforcement agent that increases their resistance to rupture when wet, such as in vacuum filtration, and their resistance when filtering acidic solutions. High Purity hardened filter papers grades 1288 to 1291 are also produced from cellulose with an alpha content of nearly 100% resulting in an ash content of <0,1%.

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Carta per separazione di fase 1PS, Whatman™

Carta per separazione di fase 1PS, Whatman™

Supplier: Whatman products (Cytiva)

1PS phase-separating paper is a hydrophobic filter for routine solvent extraction. Within seconds it retains aqueous phases, while solvent phases flow through.

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General purpose qualitative filter papers

General purpose qualitative filter papers

Supplier: Ahlstrom-Munksjö

Ahlstrom-Munksjö’s 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 liquids 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 applications.

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Paper boards for filtration and absorption of liquids

Paper boards for filtration and absorption of liquids

Supplier: Sartorius

These paper boards are used for the filtration of cooking and transformer oils, galvanic baths and as base paper for further impregnation with certain reagents. They are made of refined pulp or cotton linters.

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Industrial filter boards, Munktell

Industrial filter boards, Munktell

Supplier: Ahlstrom-Munksjö

Boards which by their filtration properties are keyed to specific applications as well as to industrial filtration processes.

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Ashless hardened quantitative filter paper

Ashless hardened quantitative filter paper

Supplier: Ahlstrom-Munksjö

Ahlstrom-Munksjö manufactures a series of extremely high purity, acid washed filter papers designed for use in analytical and gravimetric analysis. The quantitative grades are manufactured from top quality cotton linters using ultra-pure, deionised water and are further treated with dilute acid to remove any remaining organic and inorganic impurities. All quantitative grades are manufactured in a strictly controlled environment that ensures high uniformity and high purity from filter to filter.

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Seed testing papers, pleated paper

Seed testing papers, pleated paper

Supplier: Sartorius

These papers satisfy the requirements for the determination of germination capability according to ISTA (International Seed Testing Association) and are ideal for ensuring optimal moisture content for the most diverse types of seeds and germination forms.

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Supporti per filtrazioni senza ceneri, Whatman™

Supporti per filtrazioni senza ceneri, Whatman™

Supplier: Whatman products (Cytiva)

Ashless filter aids enhance filtration speed by coagulating precipitates or suspensions to form a thick retentive ‘prefilter’ layer on top of normal filter paper.

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Quantitative filter papers

Quantitative filter papers

Supplier: GERBER FUNKE

Carta da filtro per analisi quantitative

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