Description
Specifications Table
Product Name – Whatman ME25 ST Membrane Filter
Quantity/Pack Size – 47MM, 0.45uM (Pack of 100) | 50MM, 0.45uM (Pack of 100)
Form – Membrane Disc
Grade – Sterile
Application – Lab Filtration, Sample Clarification
Product Overview
The Whatman ME25 ST Membrane Filter is a high-performance filtration solution designed for laboratory applications requiring precision and reliability. Made from mixed cellulose esters (MCE), this membrane filter offers a 0.45?m pore size, ensuring efficient particle retention while maintaining optimal flow rates. The sterile nature of the filter makes it suitable for critical applications where contamination control is essential. Each filter is manufactured to strict quality standards, ensuring consistency in performance across batches. The ME25 ST variant is particularly valued for its strength and durability, reducing the risk of tearing during handling or filtration processes. Whether used for sample clarification, sterilization, or particulate analysis, this filter delivers consistent results, making it a trusted choice in research and analytical laboratories. The uniform pore structure enhances filtration efficiency, while the hydrophilic nature of the membrane ensures compatibility with a wide range of aqueous solutions. Available in 47MM and 50MM diameters, this pack of 100 filters provides ample supply for routine laboratory workflows.
FAQs
1. What is the material composition of the Whatman ME25 ST Membrane Filter?
The Whatman ME25 ST Membrane Filter is composed of mixed cellulose esters (MCE), which provide a balance of strength and filtration efficiency.
2. Can this filter be used for sterilizing liquids?
Yes, the 0.45?m pore size is commonly used for sterilization applications, effectively removing bacteria and other microorganisms from liquids.
3. Is the Whatman ME25 ST filter compatible with organic solvents?
While it is primarily designed for aqueous solutions, it can handle some organic solvents, but compatibility should be verified based on specific solvent properties.
4. How should these filters be stored to maintain sterility?
Store the filters in their original packaging in a cool, dry place, away from direct sunlight and moisture to preserve sterility until use.
5. Are there alternatives to the ME25 ST for higher flow rates?
For higher flow rates, consider filters with larger pore sizes or different membrane materials, such as nylon or PTFE, depending on the application requirements.


