설명
For Microbial Analysis and Air Monitoring Applications
Pall's mixed cellulose esters filter material is the most accepted filter material for microbiological analysis. It meets or surpasses U.S. EPA and ASTM specifications. The membrane provides maximum recovery of organisms and is available with a grid pattern that provides guidance for the quantification of microbial colonies without growth inhibition or enhancement. With less than 2% extractables, you can be assured that the mixed cellulose esters will not inhibit growth of the desired organisms. This material is available in both sterile and non-sterile packaging options to meet your manufacturing requirements.
For air monitoring applications, the membrane can be dissolved using standard digestion procedures. The membrane clears completely and possesses low artifacts resulting in minimal interference in fiber counting. The 0.8 µm mixed cellulose ester membrane meets the NIOSH requirements for airborne metals and asbestos monitoring.
“Pall Laboratory products are designed for laboratory applications only. This product is not approved for use in medical, clinical, surgical or other patient applications. If you require further assistance in product selection for your chosen application, please email us a question or call 1-800-521-1520."응용분야
Applications
- Isolation of organisms
- Enumeration of organisms
- Microbial analysis of potable, waste, process, and natural waters
- Air monitoring
Sealing
- Mechanical
- Adhesive
규격사양
Typical Membrane Characteristics
| Base Material | Grade | Pore Size (µm) | Thickness (mils) | Thickness (µm) | Recovery |
|---|---|---|---|---|---|
| Mixed cellulose esters | GN-6* Metricel® | 0.45 | 4.5-7.5 | 114.3-190.5 | > 90% E. coli |
| Mixed cellulose esters | GN-4* Metricel | 0.8 | 4.5-7.5 | 114.3-190.5 | N/A |
Typical Performance Characteristics
| Base Material | Grade | Typical Water Flow Rate | Typical Air Flow Rate | Minimum Water Bubble Point (psi) | Minimum Water Bubble Point (bar) |
|---|---|---|---|---|---|
| Mixed cellulose esters | GN-6* Metricel® | > 65 (mL/min/cm2 @ 0.7 bar, 10 psi) | N/A | 26 | 1.8 |
| Mixed cellulose esters | GN-4* Metricel | > 88 (mL/min/cm2 @ 0.7 bar, 10 psi) | 40-100 (L/min/3.7 cm2 @ 0.93 bar, 13.5 psi) | 14 | 1.0 |
Maximum Operating Temperature (Water): 74 ºC (165 ºF)
* Complies with ISO 7704
성능
Microbial Analysis Applications and Test Methods
| Test Method | Method Number* | Recommended Pall Membrane | Media Broth** |
|---|---|---|---|
| Total Coliforms | 9222 | GN-6 Metricel® membrane | MF-Endo |
| Fecal Coliforms | 9222 | GN-6 Metricel membrane | M-FC |
| Total Bacteria | 9215: USP 61, 71 | GN-6 Metricel membrane, Supor® 0.2 µm membrane*** | M-TGE, TSB-USP, HPC |
| Lactobacillus sp. detection | N/A | GN-6 Metricel membrane | Orange Serum |
| Yeast and Mold | 9610 | GN-6 Metricel membrane, Metricel Black membrane*** | M-Green YM |
| Fecal Streptococcus | 9230 | GN-6 Metricel membrane | KF-Streptococcal |
| Pseudomonas sp. | 9213 | Supor 0.2 µm membrane*** | Pseudomonas |
| Total Suspended Solids | 2540 | A/E Glass Fiber | N/A |
*Standard Method for the Examination of Water and Wastewater, 20th ed. and U.S. Pharmacopeia 28/NF23.
**Culture media listed may or may not meet the requirements of a regulated test method. It is the responsibility of the user to determine applicability in each situation.
***See Polyethersulfone Membrane for information on the Supor membrane. See Glass Fiber Media for information on the A/E glass fiber.
Air Monitoring Analysis and Recommended Membranes
| Analytical Method | Analyte | Recommended Membrane | Membrane Composition |
|---|---|---|---|
| Fiber Counting | Fibers | GN-4 Metricel Membrane | Mixed Cellulose Esters |
| Fiber Counting | Asbestos Fibers | GN-4 Metricel Membrane | Mixed Cellulose Esters |
| Ashing | Metals | GN-4 Metricel Membrane | Mixed Cellulose Esters |
| Ashing | Copper | GLA-5000* | PVC |
| Ashing | Chromium | DM Metricel** | Acrylic Copolymer |
| Gravimetric | Nuisance Dust, Carbon Black, Silica | GLA-5000* | PVC |
| Gravimetric | Air Particulate | A/E Glass Fiber, DM Metricel** | Borosilicate Glass, Acrylic Copolymer |
| Chemical Speciation | Pesticides/Some Organics | A/E Glass Fiber | Borosilicate Glass |
| Chemical Speciation | Carbon | Tissuquartz® | Pure Quartz |
| Chemical Speciation | Silica | DM Metricel** | Acrylic Copolymer |
*Contact us for additional product information.
**See Acrylic Copolymer Membrane (Hydrophilic) for information on the DM Metricel membrane. See Glass Fiber Media for information on A/E Glass Fiber and Tissuquartz.
***Contact us for membranes suitable for gravimetric air particulate analysis, acid rain, and organics chemical speciation analysis.
The Metricel, Supor, and Tissuquartz names are registered trademarks of Pall Corporation and are not available for use.
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주문정보
Custom roll, sheet, and disc sizes available upon request. Please contact your local sales representative for additional information.
| Part Number | Description | Pkg |
|---|---|---|
| S74467 | GN-6 Metricel membrane, 8" x 10" sheet | 1/pkg |
| S80049 | GN-4 Metricel membrane, 8" x 10" sheet | 1/pkg |
