Pura Disc 13mm PTFE Syringe Filters, 0.45um, 500 Pk
Whatman SKU: 6783-1304

Whatman Puradisc PTFE Syringe Filters, 0.45 µm, 13 mm, 500/Pk - 6783-1304

Whatman standardizes its manufacturing platform to the point that consistency and thorough lot-level records come as a default, exactly what analytical laboratory work demands. Many syringe filters ship with lot-specific quality documentation, giving analysts traceability that an ad hoc bulk filtration setup typically lacks. The PTFE membrane clarifies solvent streams at the rated pore size and filters aggressive organic solvents without breakdown. Polyolefin construction sheds virtually no extractable material into the sample while holding its seal true run after run and sustains its dimensional form through high-temperature filtration workflows. When method reproducibility rests on consistent sample prep, syringe filtration holds that standard injection after injection.

Technical Specifications

• Absolute pore rating delivers reproducible retention across every protocol
• Node-fibril microstructure resists compaction under sustained operating pressure
• High porosity minimizes hold-up volume for small sample volumes
• Minimal moisture absorption pairs with a low tare mass
• Non-wetting pore surface blocks liquid water while passing water vapor freely

Housing Specifications

• Optimized internal geometry minimizes backpressure in service
• Medical-grade polypropylene with broad chemical compatibility
• Thermal-bonded construction keeps adhesives out of the fluid path
• Plasticizer-free polyolefin construction keeps the fluid path clean

Filtering aggressive solvents and reagents through a filter that holds up to the chemistry keeps your sample prep reliable. Solvent-stream filtration handles the solvents and reagents your methods rely on from initial prep through final use. Reach out to the Tisch Scientific team for application support and volume pricing on your filtration product selection.

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

Bubble Point (psi)

0.6 bar (9 psi) [IPA]

Burst Pressure (psi)

75psi

Connection Type

Luer-Lok/ Luer Slip

Construction

Polypropylene

Diameter

13mm

Filtration Area

1.3cm²

Holdup Volume

<25µl

Material

Polytetrafluoroethylene (PTFE)

Maximum Operating Pressure

75psi

Maximum Operating Temperature (°C)

121°C

Pack Count

500

Pore Size (µm)

0.45

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 121°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophobic

• Cosmetics Testing - Clarifies lotions and emulsions after alcohol pre-wetting, keeping products free of particulate contaminants.
• Pump Protection - Acts as a hydrophobic barrier that protects vacuum pumps from corrosive moisture and particulate damage.
• Venting Applications - Protects vacuum pumps and vents bioreactors using a hydrophobic PTFE membrane that forms a reliable air barrier.
• Water Monitoring - After alcohol pre-wet, PTFE's chemical inertness holds up through repeated environmental sample runs without degrading.
• Agrochemical Formulation QC - Clarifies technical pesticide concentrates in organic solvent ahead of HPLC potency and impurity analysis.
• Polymer GPC Prep - Clarifies polymer solutions in THF ahead of gel permeation chromatography, protecting columns from particulates.