Whatman Non-Sterile Cellulose Nitrate Membranes – 0.2 µm

ID	Product Name
28420733	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 13 mm
28420737	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 142 mm
28420734	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 25 mm
28415003	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 25 mm
28415005	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 47 mm
28420735	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 47 mm
28420736	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 90 mm
28415006	Cellulose Nitrate Membrane Circle, plain, 0.2 µm, 50 mm

Cellulose nitrate membranes, circles, plain

Narrow pore size distribution for improved surface capture and analysis.
Low levels of extractables to ensure sample integrity.

Recommended for the majority of routine applications, this membrane is manufactured under strictly controlled conditions. The user will benefit from the performance improvements that are now available in Whatman membrane filters, including very narrow pore size distribution and low levels of extractables.

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.

Product 10401306: Discontinued. No new products will be manufactured after 30th September 2017. No alternative is available.

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Product	Product Name	Diameter All 13 mm 142 mm 50 mm 47 mm 25 mm 90 mm	Pack size All 100 pieces 25 pieces	Price
7182-001	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 13 mm	13 mm	100 pieces	158.46 USD	Add to cart {{stock.stockMessage}}
10401314	Cellulose Nitrate Membrane Circle, plain, 0.2 µm, 50 mm	50 mm	100 pieces	240.00 USD	Add to cart {{stock.stockMessage}}
10401312	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 47 mm	47 mm	100 pieces	231.00 USD	Add to cart {{stock.stockMessage}}
7182-004	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 47 mm	47 mm	100 pieces	248.00 USD	Add to cart {{stock.stockMessage}}
7182-002	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 25 mm	25 mm	100 pieces	170.58 USD	Add to cart {{stock.stockMessage}}
7182-009	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 90 mm	90 mm	25 pieces	155.09 USD	Add to cart {{stock.stockMessage}}
10401306	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 25 mm	25 mm	100 pieces	Discontinued
7182-014	Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 142 mm	142 mm	25 pieces	304.00 USD	Add to cart {{stock.stockMessage}}

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Whatman Non-Sterile Cellulose Nitrate Membranes – 0.2 µm

Whatman Non-Sterile Cellulose Nitrate Membranes – 0.2 µm

Higher strength and flexibility

Low extractable levels

Narrow pore size distribution

Increased temperature stability

Reduced shrinkage

White plain filters

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