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Whatman brings to the laboratory user a range of membrane filters whose advanced technical specifications make them today’s preferred choice for a wide range of applications. The membrane filters offer accurately controlled pore size distribution and higher strength and flexibility which ensure reproducibility and consistency. The Whatman membrane filter range includes pore sizes from 0.015 to 12 µm with a wide selection of membrane filters. Sterile and autoclave packs are available for specialized applications. Colored and gridded types are also available.
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Quick Pick Reference Chart
| Membranes |
| Membrane Type |
Material |
Pore Size* (µm) |
Diameter (mm) |
Rectangular |
Brand Name |
| Track-Etched |
Polyester
(Polyethylene Terephthalate)
Polycarbonate
(4, 4-hydroxy-diphenyl-2,2’-propane) |
0.1, 0.2, 0.4, 1.0, 5.0
0.015, 0.03, 0.05, 0.08, 0.1, 0.2, 0.4, 0.6, 0.8, 1.0, 2.0, 3.0, 5.0, 8.0,
10.0, 12.0 |
13, 25, 47
13, 25, 37,
47, 50, 76,
90, 142, 293 |
-
19 x 42 mm
25 x 80 mm,
8" x 10" |
Cyclopore
Nuclepore |
| Anopore |
Aluminum Oxide |
0.02, 0.1, 0.2 |
13, 21, 47 |
- |
Anodisc |
| Cellulose Based |
Regenerated Cellulose
Cellulose Acetate
Cellulose Nitrate
Mixed Cellulose Ester
(Mixture of Cellulose Acetate and Cellulose Nitrate) |
0.2, 0.45, 1.0
0.2, 0.45, 0.8, 1.2
0.025, 0.1, 0.2, 0.45, 0.65, 0.8, 1, 1.2, 3, 5, 8, 12
0.2, 0.45, 0.6, 0.8, 1.2, 3 |
47, 50, 100, 110, 142
25, 47, 50, 110, 142, 293
13, 25, 30, 47, 50, 70, 82, 90, 100, 110, 142, 293
25, 37, 47, 50, 90, 100, 110, 142 |
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300 x 600 mm
300 X 600 mm
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Polytetrafluoro
-ethylene (PTFE) |
Polytetrafluoro
-ethylene |
0.2, 0.45, 0.5, 1, 5 |
25, 37, 47, 50, 90, 150 |
- |
- |
| Nylon (Polyamide) |
Hexamethylene-
diamine; Nylon 66 |
0.2, 0.45, 0.8, 1 |
13, 25, 47, 50, 90, 142 |
- |
- |
| Polyethersulfone (PES) |
Polyethersulfone |
0.8 |
47 |
- |
- |
| Polypropylene |
Polypropylene |
0.2, 0.45, 1.0 |
25, 47, 90 |
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* Not all pore sizes are available in all diameters.
Blotting Membranes
Diagnostic Membranes
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