Ano Disc Circle w/out Support Ring, 13mm Diameter, 0.02 um Pore Size (100/Pk) SKU: 6809-7003

Aluminum Oxide (Anopore) Membrane Filters - 6809-7003

Designed to deliver reproducibility and confidence across critical sample types, the Whatman 6809-7003 provides the filtration consistency that method validation demands. Precision-manufactured Hydrophilic membrane with a verified 0.02 pore structure delivers consistent retention across the full operating range. In sum, consistent surface properties across the full membrane area support uniform particle capture and reliable results in gravimetric, microscopic, and culture-based analytical workflows.

Material Specifications

• Anopore Aluminum Oxide membranes feature a unique honeycomb pore structure for precision.
• Inorganic and extremely rigid, offering no deformation under high pressure filtration.
• Non-fibrous ceramic construction eliminates the shedding and fiber release associated with depth filter media.
• Precisely controlled pore geometry provides sharp molecular weight cutoffs for size-based separation of nanoparticles and macromolecules.
• Packaged without sterilization for applications where downstream sterility is achieved by other means or is not a process requirement.

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. Because the honeycomb pore architecture of aluminum oxide provides absolute retention at the rated pore size, your size-fractionation results reflect true particle dimensions rather than the probabilistic capture that polymeric depth filters produce. Elevate the quality of your analytical data today by standardizing on a filtration product built to meet the exact specifications of your applications.

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

Bubble Point (psi)

N/A

Color

white

Diameter

13mm

Extractables

minimal

Filtration Area

1.33cm²

Flow Rate

25ml (Water)

Grid (Yes/No)

No

Material

Aluminum Oxide

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

400°C

Membrane Thickness (µm)

60um

Pack Count

100

pH Range

4-9

Pore Size (µm)

0.02

Sterility

Nonsterile

Sterilization

Autoclavable at 121°C for 30 mins

Support Material

None

Wettability

Hydrophilic

• Radiometric Counting - Collects radioactive precipitates for scintillation counting, providing a consistent geometry for accurate data measurement.
• Vacuum Clarification - Utilized in Buchner funnels to rapidly remove particulates from large-volume batches of non-critical laboratory buffers.
• Stack Pre-filtration - Acts as a spacer or depth layer in multi-tier filtration stacks to extend the life of the final downstream membrane.
• 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.