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.

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 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)	Water - 135 °C (275 °F)
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.

• 142 & 293 mm Stainless Steel Disc Filter Holders
• 47 mm Magnetic Filter Funnels
• Acrodisc® Syringe Filters with Glass Fiber

Part Number	Description	Pkg	Price	Qty
Type A/E Glass Fiber Discs and Sheets, 1 µm
61628	13 mm	500/pkg	116.57
61630	25 mm	500/pkg	120.91
60097	30 mm	100/pkg	44.57
61654	35 mm	100/pkg	30.98
61652	37 mm	500/pkg	122.23
65475	42.5 mm	100/pkg	39.44
61631	47 mm	100/pkg	43.09
61632	50 mm	100/pkg	44.59
60140	55 mm	100/pkg	56.73
60012	57 mm	100/pkg	43.09
60150	63 mm	100/pkg	61.59
61665	70 mm	100/pkg	67.39
61663	76 mm	100/pkg	57.33
60010	81 mm	100/pkg	62.94
60127	82.5 mm	100/pkg	65.85
60118	85 mm	100/pkg	64.30
61664	90 mm	100/pkg	67.39
61633	102 mm	100/pkg	97.25
60115	110 mm	100/pkg	108.04
61655	124 mm	100/pkg	137.04
65476	125 mm	100/pkg	133.85
61669	127 mm	100/pkg	167.35
66559	142 mm	25/pkg	42.15
61635	142 mm	100/pkg	164.72
61675	257 mm	100/pkg	506.05
61636	265 mm	100/pkg	457.24
66560	293 mm	25/pkg	141.17
61637	293 mm	100/pkg	553.41
61638	8 x 10 in.	100/pkg	233.23
Type A/B Glass Fiber Discs and Sheets, 1 µm
66196	13 mm	100/pkg	39.18
66198	25 mm	100/pkg	41.87
66208	37 mm	100/pkg	49.29
66209	47 mm	100/pkg	67.39
66210	142 mm	25/pkg	74.57
66211	8 x 10 in.	25/pkg	77.54
Type A/C Glass Fiber Discs and Sheets, 1 µm
66213	25 mm	100/pkg	41.87
66214	37 mm	100/pkg	49.29
66215	47 mm	100/pkg	66.59
65529	70 mm	100/pkg	125.99
66216	142 mm	25/pkg	68.88
66217	8 x 10 in.	25/pkg	75.09
Type A/D Glass Fiber Discs and Sheets, 3 µm
66218	13 mm	100/pkg	25.27
66220	25 mm	100/pkg	28.22
66222	37 mm	100/pkg	31.09
66224	47 mm	100/pkg	39.03
66226	142 mm	25/pkg	50.80
66227	8 x 10 in.	25/pkg	76.01
Glass Fiber Discs with Binder, Extra Thick, 1 µm
66073	13 mm	100/pkg	35.52
66075	25 mm	100/pkg	37.67
66078	47 mm	100/pkg	54.97
66084	127 mm	50/pkg	143.63
66085	142 mm	50/pkg	148.90
66086	257 mm	25/pkg	143.63
66088	293 mm	25/pkg	143.63
Metrigard™ Glass Fiber Discs with Binder, 0.5 µm
64798	47 mm	100/pkg	59.43
64803	142 mm	100/pkg	268.81
TCLP Glass Fiber Filters
66251	13 mm	100/pkg	31.65
66258	47 mm	50/pkg	46.75
66256	90 mm	50/pkg	56.96
66259	110 mm	50/pkg	73.66
60159	115 mm	50/pkg	87.12
66257	142 mm	50/pkg	130.32
60076	293 mm	25/pkg	253.12

Contact Customer Service at 800-521-1520 for possible lead-time and ship date.