Pura Disc FP 30mm CA Syringe Filter, 0.8um, Sterile, 50 Pk
Whatman SKU: 10462240

Whatman Puradisc Cellulose Acetate (CA) Syringe Filters, 0.8 µm, 30 mm, 50/Pk - 10462240

Whatman maintains in-house specialists who set and verify material specifications separately for its cellulose, glass-fiber, and polymer membrane chemistries, tailoring quality control to how each one behaves in use. Under hand pressure from the syringe, the membrane captures particulates as the sample passes through. Cellulose acetate delivers absolute particle retention at rated size while maintaining a hydrated barrier ahead of any protein contact and handles water-based samples and low-alcohol solutions. The polycarbonate housing holds its form under elevated process pressure while resisting damage during demanding use and supports everyday aqueous filtration workflows. Where bench-scale prep must move quickly from one sample to the next, the syringe filter adds a clarification step without slowing the workflow.

Technical Specifications

• Naturally hydrophilic surface wets readily with aqueous samples
• Cellulose acetate's open pore structure supports high flow rates at low operating pressure.
• The 0.45 micron pore rating supports membrane-filtration colony counting for water and environmental testing.
• Food-contact-approved composition supports clarification of wine, beer, juice, and dairy beverages
• Accepts gamma irradiation or ethylene oxide exposure as alternative sterilization methods to autoclaving

Housing Specifications

• Impact-modified body protects the membrane seal through routine handling
• Optically clear polycarbonate body keeps the sample visible through the pass
• Impact toughness holds through cold-chain storage and refrigerated sample handling
• Clear wall lets the operator spot air locks before they stall the run

Clarify your routine aqueous samples in a single pass and cut down on juggling multiple filter types at the bench. General-purpose aqueous filtration supports the sample types you handle every day from reagent and buffer preparation through routine sample clarification. Ask our customer support technicians for chemical compatibility guidance on your specific filtration application.

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

Burst Pressure (psi)

100psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polycarbonate

Diameter

30mm

Filtration Area

5.7cm²

Holdup Volume

<50µl

Material

Cellulose Acetate

Maximum Operating Pressure

100psi

Maximum Operating Temperature (°C)

121°C

Pack Count

50

Pore Size (µm)

0.8

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 150ml

Wettability

Hydrophilic

• Diagnostic Assays - Delivers reliable results in enzymatic tests by limiting adsorption of active reagents to the membrane surface.
• Enzyme Kinetics Runs - Disposable Puradisc disks filter each assay timepoint fresh, avoiding carryover between successive kinetics samples.
• HPLC Sample Prep - Clarifies injection samples and mobile phases ahead of LC analysis, protecting columns from particulate fouling.
• Temperature Stability - Maintains integrity across normal lab bench temperatures for consistent, dependable filtration performance.
• Water Microbiology - Retains bacteria on the membrane surface for colony counting in water and environmental microbial limits testing.
• Dissolution Testing - Clarifies drug-release samples of undissolved particulates pulled from dissolution vessels, ensuring accurate potency results.