Specifications Table

Product Name – Whatman Polydisc Filter SPF 1.0uM, GF/PES
Quantity/Pack Size – Pack of 10
Form – Disc Filters
Grade – SPF (Sterile, Pre-Filtered)
Application – High-purity liquid/gas filtration, particle removal

Product Overview

The Whatman Polydisc SPF 1.0µM GF/PES filter combines glass microfiber (GF) and polyethersulfone (PES) membranes to deliver superior filtration performance for laboratory applications. Engineered with a 1.0-micron pore size, this filter ensures efficient particle retention while maintaining high flow rates, making it suitable for demanding filtration tasks. The GF/PES composite structure provides exceptional chemical compatibility, resisting solvents, acids, and bases without compromising structural integrity. Each filter undergoes stringent quality control to guarantee sterility and consistency, minimizing the risk of sample contamination. The disc format allows for easy integration into standard filtration setups, including syringe filters, vacuum manifolds, and in-line systems. With low extractables and minimal protein binding, these filters preserve sample integrity, ensuring reliable results in analytical workflows. The pack of 10 offers cost-effective convenience for routine lab use, reducing downtime between experiments. Whether used for clarifying solutions, sterilizing media, or removing particulates, the Whatman Polydisc SPF delivers reproducible performance across diverse applications.

FAQs

1. What is the difference between GF and PES in this filter?

The GF (glass microfiber) layer provides depth filtration for larger particles, while the PES (polyethersulfone) membrane offers precise 1.0µM surface filtration. This combination enhances particle retention and flow efficiency.

2. Can these filters be autoclaved for sterilization?

Yes, Whatman Polydisc SPF filters are autoclavable at 121°C for 20 minutes without compromising performance, ensuring sterility for critical applications.

3. Are these filters compatible with organic solvents like DMSO or acetone?

The PES membrane exhibits broad chemical resistance, including compatibility with DMSO, acetone, and most organic solvents, though pre-testing is recommended for prolonged exposure.

4. How should these filters be stored to maintain sterility?

Store the filters in their original packaging at room temperature (15–30°C) in a dry, clean environment. Avoid exposure to direct sunlight or humidity to preserve sterility.

5. What alternatives exist for higher throughput applications?

For higher flow rates, consider Whatman Polydisc filters with larger pore sizes (e.g., 3.0µM or 5.0µM) or pleated capsule filters, though particle retention may vary.