Pura Disc 13mm GF/F GMF Syringe Filters, 0.7um, 100/Pk
Whatman SKU: 6825-1307

Whatman Puradisc Glass Fiber (GF) Syringe Filters, 0.7 µm, 13 mm, 100/Pk - 6825-1307

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. Across analytical workflows, the syringe filter is where particulates leave the sample stream. Naturally hydrophilic glass fiber wets rapidly with aqueous samples and sustains high dirt-loading capacity through depth filtration. Polypropylene construction resists chemical degradation from routine sample matrices and maintains a low-dead-volume internal flow path. When method reproducibility rests on consistent sample prep, syringe filtration holds that standard injection after injection.

Technical Specifications

• Retains phytoplankton biomass for chlorophyll a and pheophytin a extraction under EPA Method 445.0 and Standard Methods 10200H
• Prefilters turbid samples ahead of standard microbial enumeration testing
• Biologically inert borosilicate fiber with broad chemical compatibility
• Prefilters particle-laden dissolution samples ahead of HPLC or UV assay
• Suited for acetone-extractable content determination in rubber products by Soxhlet extraction per ASTM D297

Housing Specifications

• Minimal intrinsic autofluorescence from the polypropylene housing supports background-sensitive fluorescence-based assay work downstream.
• Polypropylene housing retains its chemical integrity under vaporized hydrogen peroxide decontamination cycles used in aseptic processing isolators.
• Standardized luer taper geometry provides secure engagement with standard syringe tips
• Minimal extractable release from the housing supports sensitive analytical work downstream

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 across your water-analysis and general analytical workflows. Start a live chat with our customer support technicians for real-time updates on product availability, lead time, or your order status.

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

Capacity

Up to 10ml

Connection Type

Luer-Lok/ Luer Slip

Construction

Glass Microfiber (Binder Free)

Diameter

13mm

Filtration Area

1.33cm²

Flow Rate

Fast

Material

Glass Micro Fiber

Maximum Operating Temperature (°C)

550°C

Membrane Thickness (µm)

420µm

Pack Count

100

Pore Size (µm)

0.7

Prefilter (Yes/No)

No

Sterility

Nonsterile

Sterilization

Autoclavable 500°C

Volume Throughput (ml)

Up to 10ml

Wettability

Hydrophilic

• Viscous Fluids - Supports rapid processing of suspension cultures and lysates that quickly foul standard membrane filters alone.
• Analysis Prep - Ensures reliable clarification in multi-stage filtration stacks, effectively removing gross debris and precipitates safely.
• Suspension Culture - Depth filtration structure keeps shear stress low during harvest clarification, limiting cell lysis and contaminant release.
• QuEChERS Extract Prep - Clarifies lipid-laden produce extracts ahead of GC-MS pesticide residue analysis, preventing analytical column fouling.
• Dissolution Testing - Clarifies pharmaceutical dissolution media of excipient particulates, protecting HPLC and UV assay systems from column fouling.
• Downstream Purification - Reduces turbidity in fermentation broth ahead of capture chromatography, protecting resin binding capacity and column life.