Membrane Filter, round, CN, 25 mm, 5 µm, plain, white, 100 pc/PAK

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

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Whatman cellulose nitrate membrane filters have noticeably improved flexibility and are designed to tolerate abuse during handling, loading and autoclaving without sacrificing integrity. These membranes are among the strongest of their kind as measured and compared by burst pressure testing. 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 compromised by high extractable levels. Whatman cellulose nitrate membrane filters have low extractable levels, generally below that of other membranes of a similar type. The nominal pore size of these membranes is tightly controlled due to the advanced manufacturing and control system. In addition, batch-to-batch variation is minimized, resulting in more consistent laboratory results. Membrane filters are typically autoclaved at 121°C without compromising integrity. Cellulose nitrate membranes are supplied as circles, sheets or rolls.

You may find the certificate here: https://www.cytivalifesciences.com/en/de/support/quality/certificates