Pura Disc 13mm PTFE Syringe Filters, 5.0um, 100/Pk
Whatman SKU: 6784-1350

Whatman Puradisc PTFE Syringe Filters, 5 µm, 13 mm, 100/Pk - 6784-1350

Whatman verifies performance ratings at the lot level using process controls that stay uniform across its entire filtration lineup. Syringe filters give the analyst a single-use device for clarifying samples right at the bench. PTFE delivers absolute particle cutoff at the rated pore size and withstands aggressive organics that degrade other media. Thermal-bonded PP construction leaves no seam for sample to bypass the membrane and routes flow to minimize backpressure in service. 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

• Stable across a wide operating temperature range for demanding methods
• PTFE resists chemical attack across the full pH 1 to 14 range
• Hydrophobic PTFE retains its gas-venting, liquid-blocking function through repeated autoclave sterilization cycles.
• PTFE resists hydrofluoric acid, clearing particulate from acid-digested samples ahead of ICP-MS and ICP-OES trace metals analysis.
• PTFE's biological inertness resists enzymatic attack, preserving membrane integrity when filtering protease- or lipase-containing biological samples.

Housing Specifications

• Inert polyolefin wall contributes minimal sample adsorption to the filtrate
• Polypropylene density near 0.90 g/cm3 keeps housing weight low relative to denser engineering plastics
• Low moisture absorption keeps the housing dimensionally stable through humid storage and shipping
• Optimized internal geometry minimizes backpressure in service

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 across the organic solvents and harsh reagents your methods use. Standardize your filtration purchases across every method with volume pricing and documentation from the Tisch Scientific team.

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

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

100

Pore Size (µm)

5

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.
• Agrochemical Formulation QC - Clarifies technical pesticide concentrates in organic solvent ahead of HPLC potency and impurity analysis.
• Dissolution Testing - Stops the dissolution reaction and clarifies samples, with low API binding for accurate potency quantitation.
• Pump Protection - Acts as a hydrophobic barrier that protects vacuum pumps from corrosive moisture and particulate damage.
• Air Monitoring - Ensures precise capture of airborne particulates for environmental analysis in demanding atmospheric monitoring conditions.
• Polymer GPC Prep - Clarifies polymer solutions in THF ahead of gel permeation chromatography, protecting columns from particulates.