Filter Paper
Cytiva Whatman™ Qualitative Filter Paper: Grade 595 ½ Pleated Circles
Pleated to save time and achieve optimal fit in conical filter funnels. Whatman™ Qualitative Filter Paper: Grade 595 ½ Pleated Circles provide extra surface area to increase total loading capacity.
Cytiva Grade 740E Filter Discs
Meets FDA/WHO antibiotic-assay control disc standards. Whatman™ Grade 740E Filter Discs are thick, highly absorbent paper discs made of high-purity cotton linter for use in antibiotic-assay procedures.
Cytiva Whatman™ Quantitative Filter Paper: Grade 42 Circles
Filters and retains extremely small particles. Whatman™ Quantitative Filter Paper: Grade 42 Circles are suitable for processes that require ashing.
Sartorius™ Grade 292 High Purity Filter Discs Qualitative Filter Papers
Suitable for qualitative analyses that require low ash content
Fisherbrand™ Grade 601 General Purpose Filter Papers
A filter paper used in analytical works in laboratories with medium filtration velocity.
Cytiva Whatman™ Grade 595 Qualitative Filter Circles
Separates particles from food extracts and solids from digested environmental samples. Whatman™ Grade 595 Qualitative Filter Circles are designed for medium-fast, with medium to fine particulate retention.
Fisherbrand™ Grade 601 Cellulose General Purpose Filter Paper
Used in analytical works in laboratories. Fisherbrand™ Grade 601 Cellulose General Purpose Filter Paper has medium filtration velocity.
Fisherbrand™ Grade 13 Ashless Medium Filtering Quantitative Filter Paper
Used for fine precipitates such as magnesium ammonium phosphate and calcium oxalate.
Fisherbrand™ Grade 111 Cellulose Fast Qualitative Filter Paper
For fast filtering of particulates.
Fisherbrand™ Grade 122 General Purpose Filter Papers
A general purpose filter paper used for all general works in the laboratory for excellent and consistent filtration.
Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper
Very fast filtration velocity. Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper is used for all general works in laboratories.
Fisherbrand™ Grade 113 Cellulose Medium Filtering Qualitative Filter Paper
Filters fine particulates.
Fisherbrand™ Grade 600 Cellulose General Purpose Filter Paper: Discs
Used in schools and as bench protective paper. Fisherbrand™ Grade 600 Cellulose General Purpose Filter Paper is economical.
Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper
Very fast filtration velocity. Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper is used for all general works in laboratories.
Fisherbrand™ Grade 115 Cellulose Very Slowly Filtering Qualitative Filter Paper
Fisherbrand™ Grade 115 Cellulose Very Slowly Filtering Qualitative Filter Paper are made of cellulose fibers.
Fisherbrand™ Grade 114 Cellulose Slow Filtering Qualitative Filter Paper
Filters metal particulates.
Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper
Very fast filtration velocity. Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper is used for all general works in laboratories.
Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper
Very fast filtration velocity. Fisherbrand™ Grade 122 Cellulose General Purpose Filter Paper is used for all general works in laboratories.
Fisherbrand™ Grade 602 Medium Filtering Special Filter Paper
Suitable for all works in laboratories. Fisherbrand™ 602 Medium Filtering Special Filter Paper is used in filtration of various products, pharmaceutical wrapping (pills, powders, dressing bandages and tablets).
Fisherbrand™ Grade 600 Cellulose General Purpose Filter Paper
Used in schools and as bench protective paper. Fisherbrand™ Grade 600 Cellulose General Purpose Filter Paper is economical.
Fisherbrand™ Grade 14 Ashless Slowly Filtering Quantitative Filter Paper
Used for fine precipitates such as lead dioxide, calcium fluoride.
Fisherbrand™ Grade 1103 Cellulose Technical Filter Paper
Suitable for removal of fine particles
Simport™ Scientific White Filter Paper for TPX Cytology Funnel Single Sample Chamber
Accessory item for CytoSep™ cytology funnel
Cytiva Whatman™ Quantitative Filter Paper: Grade 50 Circles
Enables strong retention for very fine crystalline precipitates. Whatman™ Quantitative Filter Paper: Grade 50 Circles withstand shredding, wet handling, and precipitate removal by scraping.
Sartorius™ Grade 1290 Wet-strengthened Folded Filter Qualitative Filter Papers
Used for analytical purposes and routine analyses, whenever no gravimetric analyses are required
Sartorius Stedim Biotech™ Filter Boards, Discs, Grade K 12
Filter boards with increased wet strength for the filtration and absorption of liquids.
Sartorius™ Grade 6 Smooth Surface Folded Filter Qualitative Filter Papers
Used for analytical and technical purposes.
Filter papers are familiar consumables in the laboratory normally used with a conical funnel or similar device for the filtering and retention of solids, particulates and other contaminants from aqueous solutions, suspensions, solvents and other liquids. Filter papers are manufactured from natural cellulose linters or from glass or quartz fibres. They are available in various diameters as pre-cut plain circles, or as discs ready-folded into pleats, quadrants or pyramids for convenience and to maintain optimal, clog-free flow rates. Filter paper is also sold as sheets or rolls that can be cut to size as required.
Filter papers are described either as qualitative or quantitative. Qualitative filter papers are used for general purpose filtration applications where subsequent analytical outcomes are not critical.
Quantitative filter papers (ashless papers), are intended for more exacting analytical work. They are made from low-linting fibres that are typically acid-hardened during their manufacture to give high wet strength and chemical resistance, and are pre-rinsed with demineralised water for extra purity.
Most filter paper is also graded numerically according to pore size, which in turn infers other parameters such as flow rate, retention, thickness, weight, burst strength, and hence their nominal application.
What is filter paper used for?
- General applications in research laboratories, clinics and education
- In the analytical laboratory for removal of precipitants and particulates prior to further analysis or assay
- Industrial applications in foods, beverages, cosmetics and gravimetric analysis of cements, clays, iron and steel products
- Environmental analysis of water, soil or atmospheric samples