Pura Disc 25mm GMF Syringe Filters, 0.7um, 1000 Pk
Whatman SKU: 6787-2520

Whatman Puradisc Glass Fiber (GF) Syringe Filters, 0.7 µm, 25 mm, 1000/Pk - 6787-2520

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. Sample preparation for chromatography often ends with a syringe filter on the path to the vial. Glass fiber sustains high dirt-loading capacity through depth filtration while offering broad chemical compatibility and accepts water-based samples on contact. The PP housing stays inert across common laboratory solvents and buffers in routine use while pressing snugly against the membrane during the pass and maintains a low-dead-volume internal flow path. Where small-volume samples must reach the instrument clean, syringe filtration clears particulates in a single pass.

Technical Specifications

• Suited for 0.6 to 0.8 micron leachate separation under EPA Method 1311 TCLP testing
• Reduces bioburden and particulate load in serum, plasma fractions, and vaccine formulations ahead of a downstream sterilizing-grade membrane
• Clarifies turbid cell culture harvest samples ahead of analytical HPLC titer assays
• Clarifies fermentation broth, juice, and wine samples ahead of compositional or contaminant testing
• Prefilters turbid samples ahead of standard microbial enumeration testing

Housing Specifications

• Translucent housing wall allows visual confirmation of sample flow during filtration
• Withstands standard 121°C steam autoclave cycles without softening or structural distortion
• Housing tolerates elevated-temperature aqueous and solvent sample filtration up to about 80°C without softening.
• Polypropylene housing tolerates ethylene oxide gas sterilization cycles without softening or dimensional distortion.

A clean particulate separation keeps your aqueous sample preparation dependable. Consistent aqueous clarification clears particulates without slowing your bench routine from the first sample of the day through the last. Start a live chat with our customer support technicians for quick answers to your compatibility, sizing, and sterility questions.

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

Connection Type

Luer-Lok/ Luer Slip

Construction

Glass Microfiber (Binder Free)

Diameter

25mm

Filtration Area

4.91cm²

Flow Rate

Fast

Material

Glass Micro Fiber

Maximum Operating Temperature (°C)

550°C

Membrane Thickness (µm)

420µm

Pack Count

1000

Pore Size (µm)

0.7

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 500°C

Volume Throughput (ml)

Up to 100ml

Wettability

Hydrophilic

• Environmental Prep - Clarifies wastewater and soil analysis extracts efficiently, preventing premature clogging of finer analytical membranes.
• Water Analysis - Delivers high retention efficiency for suspended solids in water quality testing, ensuring accurate environmental reporting.
• Downstream Purification - Reduces turbidity in fermentation broth ahead of capture chromatography, protecting resin binding capacity and column life.
• QuEChERS Extract Prep - Clarifies lipid-laden produce extracts ahead of GC-MS pesticide residue analysis, preventing analytical column fouling.
• Bioanalytical Prep - Clears precipitated plasma and serum proteins ahead of LC-MS/MS assay, protecting columns and autosampler needles.
• Tissue Culture - Clarifies tissue homogenates and cell lysates with ease, protecting finer downstream membranes from early blockage.