Cytiva Whatman™ Type WCN Cellulose Nitrate Membranes

Recommended for majority of routine applications, this membrane is manufactured under strictly controlled conditions.  Whatman™ Type WCN Cellulose Nitrate Membranes narrow pore size distribution for improved surface capture and analysis.

Catalog Number	Mfr. No.	Diameter (Metric)	Pore Size	Quantity
09-924-582	Cytiva 7190002	25 mm	1.0 μm	100/Pk.
09-905-15	Cytiva 7184002	25 mm	0.45 μm	100/Pk.
09-924-579	Cytiva 7188002	25 mm	0.8 μm	100/Pk.
09-905-2	Cytiva 7181004	47 mm	0.1 μm	100/Pk.
09-905-45	Cytiva 7190004	47 mm	1.0 μm	100/Pk.
09-905-17	Cytiva 7184004	47 mm	0.45 μm	100/Pk.
09-924-583	Cytiva 7191014	142 mm	1.2 μm	25/Pk.
09-905-39	Cytiva 7188004	47 mm	0.8 μm	100/Pk.
09-905-56	Cytiva 7195004	47 mm	5 μm	100/Pk.
09-905-21	Cytiva 7184014	142 mm	0.45 μm	25/Pk.
09-905-50	Cytiva 7193004	47 mm	3.0 μm	100/Pk.
09-927-897	Cytiva 7186004	47 mm	0.65 μm	100/Pk.
09-924-580	Cytiva 7188003	37 mm	0.8 μm	100/Pk.
09-924-576	Cytiva 7182001	13 mm	0.2 μm	100/Pk.
09-924-575	Cytiva 7181002	25 mm	0.1 μm	100/Pk.
09-905-6	Cytiva 7182004	47 mm	0.2 μm	100/Pk.
09-905-14	Cytiva 7184001	13 mm	0.45 μm	100/Pk.
09-905-55	Cytiva 7195002	25 mm	5 μm	100/Pk.
09-905-19	Cytiva 7184009	90 mm	0.45 μm	25/Pk.
09-924-578	Cytiva 7182014	142 mm	0.2 μm	25/Pk.
09-924-581	Cytiva 7188009	90 mm	0.8 μm	25/Pk.
09-905-5	Cytiva 7182002	25 mm	0.2 μm	100/Pk.
09-924-577	Cytiva 7182009	90 mm	0.2 μm	25/Pk.
09-927-885	Cytiva 7184005	50 mm	0.45 μm	100/Pk.

Description

Recommended for majority of routine applications, this membrane is manufactured under strictly controlled conditions. Whatman™ Type WCN Cellulose Nitrate Membranes narrow pore size distribution for improved surface capture and analysis.

• Higher strength and flexibility - Most membranes are inherently brittle and difficult to handle; it is not uncommon for filters to be damaged during loading into holders or while in use. Whatman cellulose nitrate membrane filters have a noticeably improved flexibility and are made to tolerate abuse during handling, loading, and autoclaving without sacrificing integrity. These membranes are among the strongest of their type available, as measured and compared by burst pressure tests.
• Low extractable levels - The level of extractables in membrane filters has become more important with advances in filtration or adsorption techniques. In particular, pharmaceutical, immunological, and biomedical tissue culture and trace analysis applications can be adversely affected by high extractable levels. Whatman cellulose nitrate membrane filters have a low level of extractables, generally below that of other membranes of a similar type.
• Narrow pore size distribution - One of the major features of Whatman membrane filters is the narrow distribution of pore sizes. The rated pore size of these membranes is closely controlled due to the advanced manufacturing and control system. Additionally, the batch-to-batch variation is minimized providing more consistent laboratory results.
• Increased temperature stability - Membrane filters are normally autoclaved at 121°C without loss of integrity. Cellulose nitrate membranes are supplied as circles, sheets, or reels.
• Reduced shrinkage - Excessive shrinkage can cause problems during autoclaving and is often the cause of membranes tearing in their holders after autoclaving. It may also cause a reduction in flow rate and total throughput. Whatman membranes exhibit a low shrinkage during autoclaving.
• White plain filters - This is the standard membrane filter for the majority of laboratory applications involving particles and cells in the range of 0.1 μm to 12.0 μm. The residue after filtration is found to be almost completely on the surface of the membrane and allows physical recovery of deposits and microscopic examination.

Specifications

• Autoclavable: Autoclavable
• Color: White
• Material: Cellulose Nitrate