Whatman
NC45 0.45um 110mm 50/Pk SKU: 10401126

Cellulose Nitrate (CN) Membrane Filters - 10401126

Designed to deliver reproducibility and confidence across critical sample types, the 10401126 provides the filtration consistency that method validation demands. Precision-manufactured Hydrophilic membrane with a verified 0.45 pore structure delivers consistent retention across the full operating range. Precision manufacturing ensures that each membrane disc delivers the rated retention, flow rate, and surface consistency that analytical and microbiological methods require.

Material Specifications

• Cellulose nitrate membranes feature a narrow pore size distribution and low extractable levels, providing the controlled retention characteristics required for gravimetric and particulate analysis.
• Temperature rating of 80°C provides the thermal headroom required for warm sample processing, heated media preparation, and elevated-temperature analytical methods.
• Rated for a maximum operating pressure of > 10 psi, providing the structural margin required for high-viscosity and high-volume filtration runs.
• Economical bulk packaging supports laboratories with high consumable throughput where individual sterile wrapping is unnecessary.
• Autoclavable at 121°C without loss of integrity, cellulose nitrate membranes maintain their rated pore structure and dimensional stability through repeated sterilization cycles.

Reproducible particle counting and size distribution analysis start with a membrane surface that captures particles uniformly — the pore consistency documented above ensures your counts reflect the sample, not random variation in the filter. The narrow pore size distribution of cellulose nitrate membranes ensures your retention data is consistent across batches, reducing the inter-sample variability that complicates quantitative particulate and microbiological analyses. If you need help matching a membrane chemistry and pore size to your sample matrix, Tisch Scientific's technical staff can walk you through the selection process and provide application-specific recommendations.

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

Diameter

110mm

Pore Size (µm)

0.45

Sterility

Nonsterile

Wetability

Hydrophilic

• Radiometric Counting - Collects radioactive precipitates for scintillation counting, providing a consistent geometry for accurate data measurement.
• Microscopy mounting - Retains microorganisms on a flat surface, allowing for direct staining and enumeration under a high-power microscope.
• Gravimetric Analysis - Captures total suspended solids from liquid samples on a weighed disc, ensuring accurate mass measurements for reporting.
• Sediment Collection - Efficiently harvests precipitates from chemical reactions, allowing for the recovery and drying of the solid synthesis product.
• Quality Control Testing - Serves as a standard check filter for routine batch purity tests, verifying the absence of visible physical contaminants.
• Air Particulate Sampling - Traps airborne dust and pollen on a positioned open-face filter disc for subsequent microscopic or chemical analysis.