Description

Specifications Table

Product Name – Whatman Multigrade 2µM Glass Microfibre Filter
Quantity/Pack Size – 4.7CM (Pack of 40), 9.0CM (Pack of 20)
Form – Circular discs
Grade – Multigrade (2µM retention)
Application – General lab filtration, particle retention, air monitoring

Product Overview

The Whatman Multigrade 2µM Glass Microfibre Filter is engineered for superior performance in demanding laboratory environments. Constructed from 100% borosilicate glass microfibers, this filter delivers exceptional chemical resistance and thermal stability, making it suitable for both aqueous and organic solvent filtration. The 2µM retention rating ensures efficient particle capture while maintaining a high flow rate, reducing processing time without compromising filtration quality. Its uniform fiber distribution prevents media migration, ensuring consistent results across applications. The filter’s high loading capacity minimizes clogging, extending its operational life even with challenging samples. Compatible with standard filtration apparatus, these filters are pre-sterilized and ready for immediate use, eliminating the need for additional preparation steps. The inert glass composition prevents leaching or interaction with filtrates, preserving sample integrity. Available in 4.7CM and 9.0CM diameters, this versatile filter meets diverse laboratory requirements while maintaining Whatman’s reputation for precision and reliability.

FAQs

1. What is the maximum operating temperature for these glass microfibre filters?

These filters can withstand continuous operation at temperatures up to 500°C, making them suitable for high-temperature applications.

2. Are these filters compatible with aggressive solvents like concentrated acids?

The borosilicate glass composition provides excellent resistance to most acids, alkalis, and organic solvents, though prolonged exposure to hydrofluoric acid should be avoided.

3. How do these compare to cellulose-based filters in terms of flow rate?

Glass microfibre filters typically offer 2-3 times faster flow rates than equivalent cellulose filters due to their more open fiber structure while maintaining similar retention capabilities.

4. What’s the recommended storage method to maintain filter integrity?

Store in original packaging at room temperature in a dry environment. Avoid exposure to direct sunlight or moisture which could affect the filter’s performance.

5. Can these filters be autoclaved for sterilization?

Yes, these filters can be autoclaved at 121°C for 15 minutes without affecting their filtration properties or structural integrity.