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Glass Fiber Comparison Table

Glass Fiber Comparison Table

Glass Fiber Comparison Table

Grade	Pore Size (um)	Thickness (mm)	Weight (g/m²)	Water Flow (sec)*	Gas Collection Efficiency (%)	Pressure Drop (mm H²O/5cm/sec)	Max Op. Temp. (°C)	Binder	Characteristics
Grade A Borosilicate	1.5	0.3	55	12	n/a	n/a	550	None	Precipitate proteins and cell filtration
Grade B Borosilicate	1.0	0.65	140	30	n/a	n/a	550	None	Collection of biochemical polymers, prefilter
Grade A-E Borosilicate	1.0	0.33	60	15	n/a	n/a	550	None	Suspended solids and air monitoring
934 AH Borosilicate	1.5	0.43	64	47	n/a	n/a	550	None	Standard for suspended solids content and related measurements (SM 2540D and EPA Methods 160.2)
Grade C Borosilicate	1.1	0.28	50	25	n/a	n/a	550	None	RIA procedures and harvesting lymphocytes
Grade D Borosilicate	2.6	0.5	120	5	n/a	n/a	500	None	Higher volume and repetitive laboratory filtering.
Grade E Borosilicate	1.3	0.35	70	12	n/a	n/a	550	None	Suspended particle analysis in water, cell harvesting, pre-filtration and air monitoring applications
Grade F Borosilicate	0.7	0.4	80	80	n/a	n/a	550	None	Diluted aqaueous solutions containing strong oxidizing, acidic, or alkaline components prior to laser spectroscopy
DP-70	0.6	0.52	170	20		53	120	Organic	High wet strength, very high loading capacity
GA-55	0.6	0.21	55	23	99.9	34	500	None	General purpose paper
GA-100	1.0	0.44	110	11	96	20	500	None	General purpose paper
GA-200	0.8	0.75	175	15	9.99	36	500	None	Thick filter
GB-100R	0.6	0.4	95	15	99.99	30	500	None	Low trace metal content of As, Pb, and Cd
GB-140	0.4	0.56	140	58	99.99	113	500	None	Compared to GB-100R: Thicker, greater wet strength, slower filtration speed
GC-50	0.5	0.19	48	28	99.99	53	500	None	Prefilter
GC-90	0.5	0.3	100	20	99.99	42	120	Organic	High wet strength
GD-120	0.9	0.51	123	14	97	17	500	None	High wet strength, very high loading capacity
GF-75	0.3	0.35	75	84	99.999	170	500	None	Most retentive grade
GS-25	0.6	0.22	70	15	99.9	32	120	Organic	Limited dirt holding capacity, high wet strength
TCLP									Binder free, meets US EPA requirements for TCLP
Weighing Paper									Use for powdered samplers. Nitrogen free, folds easily

*Flow time is the time in seconds to filter 100 ml of distilled water at 20ºC under pressure supplied by a 10 cm water colum through a 10 cm²section of filter.

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