Mixed Cellulose Esters Membrane product photo Primary L

Mixed Cellulose Esters Membrane

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 contact Labcustomersupport@pall.com or call 1-800-521-1520."


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Description

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 contact Labcustomersupport@pall.com or call 1-800-521-1520."
Applications

Applications

  • Isolation of organisms
  • Enumeration of organisms
  • Microbial analysis of potable, waste, process, and natural waters
  • Air monitoring

Sealing

  • Mechanical
  • Adhesive
Specifications

Typical Membrane Characteristics

 
Base MaterialGradePore 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 MaterialGradeTypical Water Flow RateTypical Air Flow RateMinimum 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

Performance

Microbial Analysis Applications and Test Methods

 
Test MethodMethod Number*Recommended Pall MembraneMedia 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 MethodAnalyteRecommended MembraneMembrane 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.

Type
Membranes and Materials
Use
Filtration
Ordering Information

Custom roll, sheet, and disc sizes available upon request. Please contact your local sales representative for additional information.

 
Part NumberDescriptionPkg
     
S74467 GN-6 Metricel membrane, 8" x 10" sheet 1/pkg
     
S80049 GN-4 Metricel membrane, 8" x 10" sheet 1/pkg
 
Application
Diagnostics - Sample Preparation, Liquid and Aerosol Barrier Protection, Liquid and Aerosol Barrier Protection, Liquid and Aerosol Barrier Protection
Segment
Microbiological QC