AE99 8.0um 47mm 100/Pk SKU: 10400112

Cellulose Nitrate (CN) Membrane Filters - 10400112

Designed to deliver reproducibility and confidence across critical sample types, the Whatman 10400112 provides the filtration consistency that method validation demands. From a technical standpoint, a uniform Cellulose Nitrate (CN) matrix maintains its rated 8.0 cutoff under the pressures and flow conditions encountered during routine laboratory filtration. Each membrane disc reflects a manufacturing standard where retention characteristics, physical integrity, and dimensional accuracy are verified before release.

Material Specifications

• Supplied in bulk non-sterile packaging, offering an economical option for routine clarification and general laboratory filtration tasks.
• Naturally hydrophilic and compatible with aqueous solutions, cellulose nitrate delivers high flow rates and rapid wet-out without requiring pre-conditioning or surfactant treatment.
• Autoclavable at 121°C without loss of integrity, cellulose nitrate membranes maintain their rated pore structure and dimensional stability through repeated sterilization cycles.
• Cellulose nitrate membranes feature a narrow pore size distribution and low extractable levels, providing the controlled retention characteristics required for gravimetric and particulate analysis.
• Surface retention characteristics allow captured particles and microorganisms to remain on the membrane face, supporting direct microscopic examination and physical recovery of collected material.

Microbial enumeration methods require complete retention at the rated pore size and a surface that supports colony growth without inhibition, and the membrane specifications above confirm both requirements for your culture-based workflows. Low extractable levels in cellulose nitrate membranes mean your blank measurements stay minimal, giving you the confidence that weight changes in gravimetric analysis reflect actual sample content rather than membrane artifacts. Make the decision for consistency and reliability, ensuring that your laboratory maintains its reputation for high-quality, error-free output.

For more information about chemical compatibility, please review our Chemical Compatibility Chart.

Bubble Point (psi)

N/A

Color

white

Diameter

47mm

Extractables

low

Filtration Area

17.35cm²

Flow Rate

400ml (Water)

Grid (Yes/No)

No

Material

Cellulose Nitrate (CN)

Maximum Operating Pressure

Holder-dependent

Maximum Operating Temperature (°C)

80°C

Membrane Thickness (µm)

105–140um

Pack Count

100

pH Range

4-8

Pore Size (µm)

8

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

None

Wettability

Hydrophilic

• Environmental Compliance - Documented retention characteristics at standard pore ratings support reproducibility in regulated testing programs.
• Gravimetric Particulate Analysis - Dissolves in organic solvents for complete particle recovery and accurate weight-based quantification.
• Aerosol Analysis - Low tare weight and acid digestibility enable chemical characterization of airborne particulates from air sampling.
• Microscopy Examination - Particles remain on the membrane surface for direct visual inspection, supporting identification and classification.
• Water Quality Testing - Narrow pore distribution retains indicator organisms consistently for regulatory compliance in environmental laboratories.
• Colony Enumeration - Gridded surface variants facilitate accurate plate counting of captured microorganisms under standard magnification.