PALL GLASS FIBER FILTERS

Whatman Filters & Pall Gelman Filters

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| LABORATORY EQUIPMENT | MICROBIOLOGY | STANDARDS |

GELMAN®

Type A/E - Fine porosity, fast flow rate, with a 1.0µm size particle retention. Binder and organic free. DOP efficiency is 99.98%. Used as the standard for dissolved and suspended solids testing. Diameter sizes available range from 13mm to 293mm. Filters are available 21.59cm x 25.4cm. sheets as well.

Diameter, mm	Gelman No.	Price USD
13 dia.	61628	500/ $141.40
25 dia.	61630	500/ $144.65
35 dia.	61654	100/ $67.30
37 dia.	61652	500/ $145.95
47 dia.	61631	100/ $77.70
50 dia.	61632	100/ $79.00
76 dia.	61663	100/ $90.70
90 dia.	61664	100/ $98.50
102 dia.	61633	100/ $124.50
124 dia.	61655	100/ $160.90
127 dia.	61669	100/ $181.70
142 dia.	61635	100/ $184.30
293 dia.	61637	100/ $530.10
20.32cm x 25.40cm sheets	61638	100/ $241.50

Extra Thick - Fine porosity, medium-fast flow rate, with a 1.0µm size particle retention. Three times thicker than Type A/E, with greater holding capacity. Useful for prefiltration of viscous fluids and as depth filters. Contains 5% acrylic binder. Diameter sizes available varies from 13mm to 293mm.

Diameter, mm	Gelman No.	Price USD
13	66073	100/ $71.20
25	66075	100/ $72.50
47	66078	100/ $88.10
127	66084	50/ $164.80
142	66085	50/ $170.00
293	66088	25/ $164.80

Metrigard® - Fine porosity, medium flow rate, with a 0.5µm size particle retention .For use as a depth filter or as a replacement for asbestos filter pads. Made with 5% acrylic binder. 47mm diameter. Available in packs of 100. Gelman No. 64798 PRICE: $90.00

Types A/B, A/C and A/D - Types A/B and A/C have fine porosity, fast flow rates, and a particle retention size of 1.0µm. Type A/D has a coarse porosity, very fast flow rate, with a 3.1µm particle retention size. These are high quality borosilicate glass microfibers with high wet strength.High versatility of application. Type A/B has a thickness of 660µm, with available diameters of 13mm to 142mm or are available as 21.59cm x 25.4cm. sheets as well. Type A/C has a thickness of 279mm, with available diameters of 25mm to 142mm or are available as 21.59cm x 25.4cm. sheets as well..Type A/D has a thickness of 686µm, with available diameters of 13mm to 142mm or are available as 21.59cm x 25.4cm. sheets as well.

Type	Pore Size, um	Thickness, um	Diameter, mm	Gelman No.	Price USD
A/B	1	660	13 dia.	66196	100/ $73.80
A/B	1	660	25 dia.	66198	100/ $76.40
A/B	1	660	37 dia.	66208	100/ $82.90
A/B	1	660	47 dia.	66209	100/ $98.50
A/B	1	660	142 dia.	66210	25/ $105.00
A/B	1	660	8x10"	66211	25/ $107.60
A/C	1	279	25 dia.	66213	100/ $76.40
A/C	1	279	37 dia.	66214	100/ $82.90
A/C	1	279	47 dia.	66215	100/ $98.50
A/C	1	279	142 dia.	66216	25/ $99.80
A/C	1	279	8x10"	66217	25/ $102.40
A/D	3.1	686	13 dia.	66218	100/ $62.10
A/D	3.1	686	25 dia.	66220	100/ $64.70
A/D	3.1	686	37 dia.	66222	100/ $67.30
A/D	3.1	686	47 dia.	66224	100/ $73.80
A/D	3.1	686	142 dia.	66226	25/ $84.20
A/D	3.1	686	8x10"	66227	25/ $105.00

TCLP - Fine porosity, medium flow rate with a 0.7µm size particle retention. Manufactured for use in US EPA Method 1311 Toxicity Characteristics Leaching Procedure. Can also be used for volatile analysis and hazardous waste filtration units in Zero Headspace Extractors. Made of binder free borosilicate glass without added extractables. Available in diameters of 47mm, 90mm, 110mm and 142mm. Sold in packs of 50.

Diameter, mm	Gelman No.	Price USD
47	66258	$79.00
90	66256	$86.80
110	66259	$101.10
142	66257	$147.90

WHATMAN®

GF/F Grade - Fine porosity, medium flow rate, with a 0.7µm size particle retention. Binder free. Often coupled with GF/D for use in filtration of dilute aqueous solutions of containing strong oxidizing, acidic, or alkaline components prior to Raman laser spectroscopy. Can also be used for TCLP analysis and collecting extremely fineprecipitated proteins, including immunoglobulins. Available diameter sizes range from 2.1cm to 29.3cm , as well as 46cm x 57cm sheets.

Diameter, cm	Whatman No.	Price USD
2.1 dia.	1825-021	100/ $108.80
2.4 dia.	1825-024	100/ $117.65
2.5 dia.	1825-025	100/ $117.65
3.7 dia.	1825-037	100/ $135.75
4.25 dia.	1825-042	100/ $142.55
4.7 dia.	1825-047	100/ $158.55
5.5 dia.	1825-055	100/ $168.55
7 dia.	1825-070	100/ $191.55
9 dia.	1825-090	25/ $102.40
11 dia.	1825-110	25/ $123.00
12.5 dia.	1825-125	25/ $138.88
14.2 dia.	1825-142	25/ $169.55
15 dia.	1825-150	25/ $185.75
25.7 dia.	1825-257	25/ $433.55
29.3 dia.	1825-293	25/ $736.55
46x57 sheets	1825-915	25/ $1,998.00

934-AH Grade - Fine porosity, fast flow rate, with a 1.5µm size particle retention. Binder free. Is used as the standard for suspended particle analysis in water and lymphocyte harvesting. RIA scintillation counting. Available diameters vary from 2.1cm to 24cm, as well as 30.48cm x 38.1cm sheets. Available in packs of 100.

Diameter, cm	Whatman No.	Price USD
2.1 dia.	1827-021	$62.35
2.4 dia.	1827-024	$64.83
2.8 dia.	1827-028	$65.50
3 dia.	1827-030	$67.30
3.2 dia.	1827-032	$69.33
3.5 dia.	1827-035	$72.33
3.7 dia.	1827-037	$72.33
4.25 dia.	1827-042	$75.55
4.7 dia.	1827-047	$84.33
5.5 dia.	1827-055	$86.65
7 dia.	1827-070	$98.50
9 dia.	1827-090	$117.63
11 dia.	1827-110	$149.65
12.5 dia.	1827-125	$174.63
18.5 dia.	1827-185	$304.00
24 dia.	1827-240	$387.00
12x15" sheets	1827-889	$594.75

GF/A Grade - Fine porosity, fast flow rate, with a 1.6µm size particle retention. Manufactured for ideal use in the filtration of precipitated proteins and cells. Ideally suited for use as a filter for radioimmunoassay of weak beta emitters by scintillation counting and gravimetric determination of airborn particulates. Binder free. Available diameters range from 2.1cm to 15cm. Available in packs of 100.

Diameter, cm	Whatman No.	Price USD
2.1	1820-021	$65.48
2.4	1820-024	$65.62
2.5	1820-025	$65.62
3.7	1820-037	$79.54
4.25	1820-042	$71.50
4.7	1820-047	$75.00
5.5	1820-055	$77.31
7	1820-070	$84.94
9	1820-090	$107.55
11	1820-110	$147.17
12.5	1820-125	$170.10
15	1820-150	$246.25

GF/B Grade - Fine porosity, medium - fast flow rate, with a 1.0µm size particle retention. Ideally suited for the collection of biochemical polymers that have been precipitated by denaturation. Thick construction with a high loading capacity. May also be used as a solid particulate filter for gasses or as a pre-filter. Binder free. Available diameter ranges fom 2.1cm to 15cm.

Diameter, cm	Whatman No.	Price USD
2.1	1821-021	100/ $88.79
2.4	1821-024	100/ $90.40
2.5	1821-025	100/ $90.40
3.7	1821-037	100/ $101.60
4.25	1821-042	100/ $106.99
4.7	1821-047	100/ $119.80
5.5	1821-055	100/ $126.31
7	1821-070	100/ $155.57
9	1821-090	25/ $82.28
11	1821-110	25/ $98.80
12.5	1821-125	25/ $115.39
15	1821-150	25/ $153.26

GF/C Grade - Fine porosity, fast flow rate, with a 1.2µm size particle retention. This is the standard water filter used in Europe for the collection of suspended solids and marine chemistry expreimentation. Also well suited for RIA procedures and harvesting lymphocytes. Binder free. Available diameters range from 2.1cm to 15cm, as well as 46cm x 57cm sheets. All are available in packs of 100 except for the 46cm x 57cm sheets (pack of 25).

Diameter, cm	Whatman No.	Price USD
2.1 dia.	1822-021	$92.29
2.4 dia.	1822-024	$94.46
2.5 dia.	1822-025	$94.46
3.7 dia.	1822-037	$102.16
4.25 dia.	1822-042	$102.16
4.7 dia.	1822-047	$123.02
5.5 dia.	1822-055	$124.77
7 dia.	1822-070	$147.17
9 dia.	1822-090	$189.66
11 dia.	1822-110	$226.25
12.5 dia.	1822-125	$253.25
15 dia.	1822-150	$331.25
46x57 sheets	1822-915	$738.00

GF/D Grade - Coarse porosity, fast flow rate, with a 2.7µm size particle retention. Well suited for volume/repetitive laboratory filtering, or as a general pre-filter to extend filter life. Binder free. Diameters available range from from 1cm to 15cm.

Diameter, cm	Whatman No.	Price USD
1	1823-010	100/ $69.68
2.1	1823-021	100/ $69.68
2.4	1823-024	100/ $69.68
2.5	1823-025	100/ $69.68
3.7	1823-037	100/ $75.42
4.25	1823-042	100/ $78.64
4.7	1823-047	100/ $84.94
5.5	1823-055	100/ $91.73
7	1823-070	100/ $111.96
9	1823-090	25/ $69.75
12.5	1823-125	25/ $94.46
15	1823-150	25/ $115.25

Multigrade GMF 150 - Coarse porosity, slow flow rate, and used as a prefilter. Constructed of 100% borosilicate glass microfibers, with a coarse layer on top, followed underneath by a fine layer. Binder free. High particle loading capacity. Available diameter: 16mm. Pore size: 1µm. Available as a pack of 40. PRICE: $67.40

Grade QM-A Quartz - Fine porosity with a 99.999% efficiency in air filtration for the retention of 0.6µm particles in air at a flow rate of 5cm/second. Well suited for air pollution monitoring, atomic absorption spectroscopy, flame emission spectrometry, and other applications where an extremely critical analysis is needed. Size diameter available ranges from 3.2cm to 5.5cm, as well as 20.3cm x 25.4cm or 20.3cm x 25.4cm sheets (available sequentially numbered).

Diameter, cm	Whatman No.	Price USD
3.2 dia.	1851-032	100/ $128.25
3.7 dia.	1851-037	100/ $143.25
4.7 dia.	1851-047	100/ $160.00
5.5 dia.	1851-055	100/ $169.95
20.3x25.4 sheets	1851-865	25/ $285.50
20.3x25.4 sheets (numbered)	1851-8866	100/ $997.00

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