Pall Gelman Mixed Cellulose Esters Membranes

Pall Gelman provides two types of mixed cellulose esters membranes for environmental monitoring: the GN-4 Metricel® and the GN-6 Metricel®.

GN-4 Metricel 0.8µm membranes are well suited for metal and asbestos level monitoring. They meet all NIOSH requirements for performing Methods 7400 and 7402. Available in 25, 37, and 47mm diameter, with or without support pads. Provided nonsterile; autoclave or EtO if desired.

GN-6 Metricel 0.45µm membranes are suitable for use in US EPA Method 1310 EP Toxicity Testing and meet the requirements for other hazardous waste filtration methods referenced in US EPA SW-846. These membranes meet the US EPA AHERA regulations and NIOSH and OSHA methods of airborne asbestos monitoring. They can also be used in microbiological water testing and analysis in accordance with standard membrane filtration techniques. They meet or surpass all US EPA and ASTM specifications for microbiological analysis.

GN-6 Metricel membranes are available in diameters of 13, 25, 37, 47, and 142mm, nonsterile; autoclave if desired. 47mm GN-6 membranes can be purchased in individually packaged sterile "S-Packs" or in an "Autoclave Package" - 100 membranes and absorbent pads grouped into packets ready for autoclaving.

• For air monitoring, Cat.Nos. 629-64677, 629-66263, and 629-63068 are available in Pall Gelman 25mm Air Monitoring Cassettes.
• Cat.Nos. 629-64678 and 629-64382 are available in Pall Gelman 37mm Air Monitoring Cassettes.

Specifications for Metricel Membranes:

	GN-4 Metricel	GN-6 Metricel
Typical filter weight	4mg/cm2	4mg/cm2
Typical thickness	152.4µm	150µm
Refractive index	1.512	1.512
Typical water flow rate (at 10 psi)	145mL/min/cm2	65mL/min/cm2
Typical air flow rate (at 10 psi)	15Lpm/cm2	8Lpm/cm2
Max. operating temp-water	74°C	74°C
Min. bubble point-water	1.0kg/cm2, 14 psi	1.8kg/cm2, 26 psi
Extractables-boiling water	≤2%	≤2%
Typical moisture pickup (after 24 hr at 48% RH/23°C)	<1%	<1%

GN-4 Metricel membranes

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Cat.No.	Name	Membrane	Material	Pore Size	Diam	Sterile	PK
629-64678	GN-4 Metricel membranes	Plain, with support pads	Mixed cellulose esters	0.8µm	37mm	No	$0.00 100/PK CALL FOR PRICE		Add To Favorites
629-64679	GN-4 Metricel membranes	Plain	Mixed cellulose esters	0.8µm	47mm	No	$0.00 100/PK CALL FOR PRICE		Add To Favorites
629-66179	GN-4 Metricel membranes	Grid	Mixed cellulose esters	0.8µm	47mm	No	$0.00 100/PK CALL FOR PRICE		Add To Favorites

GN-6 Metricel membranes

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Cat.No.	Membrane	Material	Pore Size	Diam	Sterile	Packaging	PK
629-63068	Plain	Mixed cellulose esters	0.45µm	25mm	No		$0.00 100/PK CALL FOR PRICE		Add To Favorites
629-64382	Plain, with support pads	Mixed cellulose esters	0.45µm	37mm	No		$0.00 100/PK CALL FOR PRICE		Add To Favorites
629-63069	Plain	Mixed cellulose esters	0.45µm	47mm	No		$0.00 100/PK CALL FOR PRICE		Add To Favorites
629-66068	Grid	Mixed cellulose esters	0.45µm	47mm	Yes	S-Pack	$0.00 1000/PK CALL FOR PRICE		Add To Favorites
629-66278	Grid	Mixed cellulose esters	0.45µm	47mm	Yes	S-Pack	$0.00 200/PK CALL FOR PRICE		Add To Favorites