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Non-Sterile Cellulose Nitrate Membranes – 0.2 µm, 47 mm

Whatman Plain Cellulose Nitrate Membrane Filters have excellent flexibility and low level of extractables to ensure sample integrity. The narrow pore size distribution of these filters provide for improved surface capture and analysis.
Manufacturer: Whatman
Product Code: 7182-004
GST: 18.00 %
Packaging: 100 circles
UOM: Pack
Delivery date: Within 15 Days
₹ 5,900.00

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.

Specification:

Parameter

Cellulose Nitrate Membrane Circle, plain, 0.2 µm pore size, 47 mm

Application

Sample preparation Microbiological studies Filtration of aqueous solutions

Autoclavable

Yes

Color

White

Field of Application

Sterilizing (General) Total bacteria count (Food and beverage QC) Sterile filtration (Tissue culture)

Hydrophobic

No

Hydrophilic

Yes

Material

Cellulose Nitrate

Membrane Type

Plain

Operating temp. max.

80ºC

Pore Size

0.2 µm

Porosity Max.

84%

Porosity Min.

66%

Sterility

Nonsterile

Weight Max.

5.5 mg/cm²

Weight Min.

3.6 mg/cm²

Diameter

47 mm

Pack size

100 pieces

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