Certified 0.45 µm membrane for microbiological analysis meets or surpasses U.S. EPA and ASTM specifications

• Mixed cellulose esters is the most accepted filter media for microbiological analysis, and provides maximum recovery of organisms.
• Unique dot grid pattern gridline provides guidance for quantification of bacterial colonies without growth inhibition or enhancement.
• Suitable for microbiological analysis using the Membrane Filter (MF) Technique. Each box contains a signed certification for your permanent records.
• Variety of packaging options meets any need. Available in sterile, individually packaged S-Packs, autoclave packs, or non-sterile packs.
• Use with Pall Life Sciences nutrient media for high growth levels and easy identification of contaminants.

• Certified for the microbiological analysis of potable, waste, process, and natural waters in accordance with the MF Technique referenced in Standard Methods for the Examination of Water and Wastewater, 20th edition, and the U.S. EPA's Microbiological Methods for Monitoring the Environment, 600/8-78-017.
• Ideal for isolation and enumeration of Total and Fecal Coliforms, E. coli, Fecal Streptococcus, fungi, and other heterotrophic organisms.

Filter Media
Hydrophilic mixed cellulose esters

Pore Size
0.45 µm

Typical Thickness
152 µm (6 mils)

Typical Filter Weight
4 mg/cm²

Typical Water Flow Rate
> 65 mL/min/cm² at 0.7 bar (70 kPa, 10 psi)

Maximum Operating Temperature — Water
74 °C (165 °F)

Typical Moisture Pick-up
< 1% after 24 hr at 48% relative humidity at 23 °C (73 °F)

Extractables - Boiling Water
< 2%

Minimum Bubble Point - Water
1.8 bar (180 kPa, 26 psi)

Recovery
(measured vs. control)
> 90% E. coli

Refractive Index
1.512

Sterilization
Provided sterile or non-sterile; autoclavable if desired at 121 - 123 °C (250 - 253 °F) at 1.0 bar (100 kPa, 15 psi) for 15 - 20 min; S-Packs sterilized by gamma irradiation

Part Number	Description	Pkg	Price	Qty
GN-6 Metricel Membrane, 0.45 µm (S-Packs)
66265	47 mm, plain, sterile	200/pkg	153.18
66278	47 mm, grid, sterile	200/pkg	121.82
66068	47 mm, grid, sterile	1000/pkg	416.10
66191	47 mm, grid, sterile	2000/pkg	715.22
66539	50 mm, grid, sterile	200/pkg	131.47
GN-6 Metricel Membrane, 0.45 µm (Autoclave Packages)
63077	47 mm, grid, sterile	100/pkg	84.45
GN-6 Metricel Membrane, 0.45 µm (Non-sterile Packages)
63066	13 mm, plain	100/pkg	63.68
63068	25 mm, plain	100/pkg	66.27
64191	25 mm, grid	100/pkg	76.65
64382	37 mm, plain, with support pads	100/pkg	113.75
63069	47 mm, plain	100/pkg	102.62
63020	47 mm, grid	100/pkg	106.32
60016	85 mm, grid	50/pkg	90.24
66536	142 mm, plain	25/pkg	261.04

Contact Customer Service at 800-521-1520 for possible lead-time and date item will be available to ship.