Filter Paper
Filter Paper
Qualitative and quantitative filter papers for the clarification and purification of samples for analysis. Available in a range of sizes, counts, grades, and formats such as circles and sheets, they are often made from cellulose or nylon.
Filter papers are familiar laboratory consumables often used with a conical funnel or similar device to filter and retain solids, particulates, and other materials from aqueous solutions, suspensions, solvents, and other liquids. Filter papers may be manufactured from natural cellulose, nylon, or glass or quartz fibers. They are typically available as pre-cut circles of various diameters, which may be folded into pleats, quadrants, or pyramids. Some filter papers are also sold as sheets or rolls that can be cut to size as needed.
Filter papers may be categorized as qualitative or quantitative. Qualitative filter papers are used for general purpose filtration applications where subsequent analysis is not critical. Quantitative filter papers (ashless papers) are intended for more exacting analytical work and may be weighed or otherwise processed after use. They are made from low-linting fibers that are typically acid-hardened during their manufacture to provide high wet strength and chemical resistance, and are pre-rinsed with demineralized water for extra purity.
Most filter papers are also graded numerically according to pore size, which in turn infers other parameters such as flow rate, retention, thickness, weight, and burst strength, that constrain and prescribe their application.
What is Filter Paper Used for?
• General applications: research laboratories, clinics, and educational settings
• Analytical applications: precipitant and particulate removal prior to further analysis or assay
• Industrial applications: foods and beverages, cosmetics, and gravimetric analysis of cements, clays, and iron and steel products
• Environmental applications: water, soil, or atmospheric sample analysis
- (1)
- (3)
- (1,044)
- (9)
- (1)
- (247)
- (11)
- (101)
- (4)
- (1)
- (2)
- (1)
- (37)
- (1)
- (3)
- (17)
- (1)
- (1)
- (17)
- (160)
- (1)
- (1)
- (1)
- (2)
- (8)
- (8)
- (29)
- (1)
- (2)
- (610)
- (1)
- (15)
- (10)
- (1)
- (2)
- (1)
- (11)
- (239)
- (9)
- (1)
- (5)
- (1)
- (463)
- (3)
- (6)
- (1)
- (4)
- (1)
- (2)
- (1)
- (2)
- (3)
- (3)
- (7)
- (7)
- (1)
- (2)
- (10)
- (7)
- (3)
- (1)
- (1)
- (1)
- (25)
- (1)
- (1)
- (2)
- (3)
- (10)
- (18)
- (14)
- (12)
- (1)
- (5)
- (27)
- (22)
- (12)
- (42)
- (1)
- (9)
- (1)
- (27)
- (3)
- (1)
- (99)
- (10)
- (1)
- (2)
- (25)
- (4)
- (1)
- (29)
- (3)
- (1)
- (3)
- (72)
- (1)
- (15)
- (26)
- (20)
- (9)
- (2)
- (23)
- (21)
- (12)
- (1)
- (15)
- (3)
- (62)
- (9)
- (1)
- (9)
- (1)
- (13)
- (30)
- (1)
- (3)
- (41)
- (16)
- (119)
- (3)
- (1)
- (3)
- (9)
- (11)
- (6)
- (47)
- (8)
- (3)
- (2)
- (1)
- (30)
- (131)
- (1)
- (1)
- (2)
- (1)
- (5)
- (25)
- (1)
- (7)
- (5)
- (5)
- (8)
- (2)
- (3)
- (1)
- (1)
- (1)
- (1)
- (16)
- (43)
- (8)
- (8)
- (56)
- (10)
- (9)
- (1)
- (11)
- (5)
- (29)
- (2)
- (33)
- (27)
- (12)
- (15)
- (24)
- (11)
- (7)
- (24)
- (2)
- (6)
- (1)
- (9)
- (2)
- (24)
- (6)
- (50)
- (51)
- (2)
- (3)
- (1)
- (1)
- (17)
- (4)
- (21)
- (1)
- (32)
- (3)
- (1)
- (1)
- (1)
- (1)
- (1)
- (1)
- (21)
Filtered Search Results
Fisherbrand™ Grade 601 General Purpose Filter Papers
A filter paper used in analytical works in laboratories with medium filtration velocity.
Thickness (Metric) | 0.16 mm |
---|---|
Pore Size | 5 to 13 μm |
Format | Disc |
Quantity | 100/Pk. |
For Use With (Application) | General works, hospitals, research laboratories, schools, chemical industries, cosmetics, food and beverage industries |
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.
Thickness (Metric) | 0.17 mm |
---|---|
Pore Size | 17 to 30 μm |
Particle Retention | 17 to 30 μm |
Grade | 122 |
Material | Cellulose |
Sartorius Stedim Biotech™ Grade 388 Quantitative Papers, Folded
Sartorius Stedim Biotech™ Grade 388 Quantitative Papers, Folded are suitable for quantitative and gravimetric analyses as well as for pressure or vacuum filtration.
Thickness (Metric) | 0.21 mm |
---|---|
Particle Retention | 12 to 15 μm |
Basis Weight | 84 g/m2 |
Format | Folded |
Quantity | 100/Pk. |
Grade | 388 |
Material | 100% Cotton Linters (>98% alpha-cellulose; ash-free) |
Filtration Speed | 10 sec. |
Sartorius Qualitative Grade 3 hw Filter Papers
This paper grade is generally used for analytical and technical purposes.
Thickness (Metric) | 0.2 mm |
---|---|
Pore Size | 12 to 15 μm |
Particle Retention | 12 to 15 μm |
Description | Ash Content: 0.06% |
Quantity | 100 Pack |
Grade | 111 |
Material | Cellulose |
For Use With (Application) | For coarse and voluminous precipitates like Hydroxides and Sulphides |
Fisherbrand™ Grade 55 Ashless Hardened Quantitative Filter Paper
Suitable for wide range of analytical applications.
Thickness (Metric) | 0.14 mm |
---|---|
Pore Size | 2 to 3 μm |
Particle Retention | 2 to 3 μm |
Type | Ashless Hardened Quantitative Filter Paper |
Format | Disc |
Description | Ash Content: 0.007% |
Quantity | 100/Pk. |
Grade | 55 |
Material | Refined Cellulose, Cotton Linters |
Filtration Speed | 180 sec. |
For Use With (Application) | Used for Acid solutions analysis and for filtration under high pressure |
Fisherbrand™ Grade 1101 Cellulose Technical Filter Paper
Used for filtration of fatty products and suitable for hot filtrations.
Thickness (Metric) | 0.55 mm |
---|---|
Pore Size | 38 to 75 μm |
Particle Retention | 38 to 75 μm |
Quantity | 100 Pack |
Grade | 1101 |
Material | Cellulose |
For Use With (Application) | For syrups, essential oils, varnish, resinous solutions, paints, sweetened juices, wines |
Sartorius™ Qualitative and Creped Technical Papers, Grade 5 H/N
Semi-permeable paper barrier placed perpendicular to liquid or air flow
Sartorius Stedim Biotech™ Grade 603/N Creped Paper for Qualitative and Technical Analyses, Folded
Sartorius Stedim Biotech™ Grade 601/N Creped Papers for Qualitative and Technical Analyses, Folded are suitable for analytical and technical purposes and feature a fast flow rate due to their structure.
Sartorius Stedim Biotech™ Grade 1291 Qualitative Papers, Folded
Sartorius Stedim Biotech™ Grade 1291 Qualitative Papers, Folded are suitable for analytical purposes and routine analyses whenever no gravimetric analyses are required.
Sartorius™ Grade 1290 Wet-strengthened Folded Filter Qualitative Filter Papers
Used for analytical purposes and routine analyses, whenever no gravimetric analyses are required
Thickness (Metric) | 0.21 mm |
---|---|
Particle Retention | 3 to 5 μm |
Type | Qualitative Filter Paper |
Format | Folded |
Quantity | 100/Pk. |
Grade | 1290 |
Material | Cotton Linters, Refined Pulp |
Filtration Speed | 100μm/sec. |
For Use With (Application) | Used for analytical purposes and routine analyses, whenever no gravimetric analyses are required |
Fisherbrand™ Grade 14 Ashless Slowly Filtering Quantitative Filter Paper
Used for fine precipitates such as lead dioxide, calcium fluoride.
Thickness (Metric) | 0.15 mm |
---|---|
Pore Size | 3 to 5 μm |
Particle Retention | 3 to 5 μm |
Type | Ashless Quantitative Filter Paper |
Format | Disc |
Description | Ash Content: 0.007% |
Quantity | 100/Pk. |
Material | Cotton Linters |
Filtration Speed | 100 sec. |
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 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).
Length (Metric) | 520 mm |
---|---|
Grade | 602 |
For Use With (Application) | All works in laboratories - filtration of various products, pharmaceutical wrapping (pills, powders , dressing bandages and tablets) |
Width (Metric) | 420 mm |
Dimensions (L x W) | 520 x 420mm |
Fisherbrand™ Grade 11 Ashless Fast Filtering Quantitative Filter Paper
Used for coarse and voluminous precipitates such as iron, aluminum and chromium hydroxides, Si-determination in steel and pig iron analysis.
Thickness (Metric) | 0.18 mm |
---|---|
Pore Size | 12 to 15 μm |
Particle Retention | 12 to 15 μm |
Type | Ashless Quantitative Filter Paper |
Description | Ash Content: 0.007% |
Quantity | 100/Pk. |
Grade | 11 |
Material | Cotton Linters |
Filtration Speed | 10 sec. |
For Use With (Application) | Used for coarse and voluminous precipitates such as Iron, Aluminum and Chromium Hydroxide, Si determination in Steel and Pig Iron analysis |