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Glass Fiber Filters

Superior Grade Filters for a Variety of
Biological and Environmental Methods

  • Type A/E meets the requirements for suspended solids testing, as described in Standard Methods for the Examination of Water and Wastewater, current edition.
  • Reduces filtration costs and premature clogging when filtering difficult-to-filter or highly contaminated solutions.
  • Extends filter life and reduces final filter changes with high capacity prefilters.
  • Eliminates sample contamination. Binder-free borosilicate glass fiber has no added extractables.
  • Filters a wide range of particulate loads and viscous solutions with a selection of filter thicknesses from which to choose.
  • Filters with binder offer excellent wet strength for easy handling and filter integrity.


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Disc Filters

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$ 50.70
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$ 59.78
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$ 64.67
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$ 69.91
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$ 55.01
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$ 67.01
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$ 161.23
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$ 175.17
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$ 49.26
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$ 49.26
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$ 168.98
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$ 297.80
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$ 57.99
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$ 89.43

Type A/E Glass Fiber Discs and Sheets, 1 µm

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$ 142.26
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$ 143.81
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$ 67.47
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$ 74.06
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$ 77.48
Description

Superior Grade Filters for a Variety of
Biological and Environmental Methods

  • Type A/E meets the requirements for suspended solids testing, as described in Standard Methods for the Examination of Water and Wastewater, current edition.
  • Reduces filtration costs and premature clogging when filtering difficult-to-filter or highly contaminated solutions.
  • Extends filter life and reduces final filter changes with high capacity prefilters.
  • Eliminates sample contamination. Binder-free borosilicate glass fiber has no added extractables.
  • Filters a wide range of particulate loads and viscous solutions with a selection of filter thicknesses from which to choose.
  • Filters with binder offer excellent wet strength for easy handling and filter integrity.
Applications
Used in a variety of sample clean-up, prefiltration, and analytical testing applications. Choose between binder-free borosilicate glass for complete purity or glass fiber with acrylic binder for added strength.

Type A/E Glass Fiber

  • For testing dissolved and suspended solids in wastewater and gravimetric analysis of air pollutants.
  • High flow rates, wet strength, and dirt (solids) holding capacities.

Type A/B Glass Fiber

  • High dirt-loading capacity with 2.5 times thicker glass than Type A/C.
  • Manufactured of the highest quality borosilicate glass microfibers.

Type A/C Glass Fiber

  • For testing dissolved and suspended solids in wastewater.
  • Useful for cell harvesting applications.
  • Purity eliminates risk of unwanted contaminants leaching into the filtrate.

Type A/D Glass Fiber

  • Excellent prefilters for solutions with a heavy load of large-sized particulate that must be removed.
  • Large nominal pore size reduces membrane clogging.

Extra Thick Glass Fiber With Binder

  • Preferred for prefiltration of viscous biological solutions.
  • High particulate-holding capacity makes discs efficient depth filters and allows for filtration of large volumes of solutions.

Metrigard™ Glass Fiber With Binder

  • Useful for prolonging membrane filter life in liquid systems that contain substantial amounts of particulate matter.

TCLP Glass Fiber

  • Designed to meet requirements for use in U.S. EPA SW-846 Method 1311: Toxic Characteristics Leaching Procedure (TCLP).
Specifications

Specifications and Selection Chart

 
Description Type A/E Type A/B Type A/C
Typical Applications Water solids testing, air
monitoring, gravimetric analysis
Diagnostic applications,
sample prefiltration
Cell harvesting, prefiltration, solids testing
Filter Media Borosilicate glass without binder Borosilicate glass without binder Borosilicate glass without binder
Pore Size (Nominal) 1 μm 1 μm 1 μm
Typical Thickness 330 μm (13 mils) 660 μm (26 mils) 254 μm (10 mils)
Typical Water Flow Rate
mL/min/cm2 at 0.3 bar (30 kPa, 5 psi)
250 124 153
Typical Air Flow Rate
L/min/cm2 at 0.7 bar (70 kPa, 10 psi)
60 24 40
Maximum Operating Temperature Air - 550 °C (1,022 °F) Air - 550 °C (1,022 °F) Air - 550 °C (1,022 °F)
Sterilization Autoclavable Autoclavable Autoclavable
Typical Aerosol Retention* 99.98%
 

 
Description Type A/D Extra Thick Discs Metrigard™ Discs TCLP
Typical Applications
with large-sized particulate
Prefiltration of solutions
contaminated samples
Prefiltration of heavily Prefiltration in systems
with high particulate matter
U.S. EPA Method
1311
Filter Media Borosilicate glass
without binder
Glass fiber with
acrylic binder**
Ultrafine glass fiber
with acrylic binder**
Borosilicate glass
without binder***
Pore Size (Nominal) 3 μm 1 μm 0.5 μm 0.7 μm
Typical Thickness 660 μm (26 mils) 1270 μm (50 mils) 330 μm (13 mils) 432 μm (17 mils)
Typical Water Flow Rate
mL/min/cm2 at 0.3 bar (30 kPa, 5 psi)
649 210 80
Typical Air Flow Rate
L/min/cm2 at 0.7 bar (70 kPa, 10 psi)
139 26 21
Maximum Operating Temperature Air - 550 °C (1,022 °F) Water - 135 °C (275 °F) Water - 135 °C (275 °F) N/A
Sterilization Autoclavable Autoclavable Autoclavable Autoclavable
Typical Aerosol Retention* 99.97%
 
* Following ASTM D 2986-95A 0.3 μm (DOP) at 32 L/min/100 cm2 filter media.
** Binder is 5% of total material.
*** TCLP glass fiber filters are not acid washed.
Type
Membrane Discs
Use
Prefiltration
Application
Mobile Phase Filtration
Segment
Analytical QC
Environmental QC
Venting and Gas Filtration