Description
Specifications Table
Product Name – Whatman ME27/31 STL Membrane Filter
Quantity/Pack Size – 47MM, 0.8µM (Pack of 400)
Form – Membrane Filter
Grade – Hydrophilic, Sterile
Application – Particle filtration, microbial analysis, sterile filtration
Product Overview
The Whatman ME27/31 STL membrane filter is engineered for high-performance filtration in laboratory settings. Made from mixed cellulose esters, this 47mm diameter filter features a 0.8µm pore size, ensuring precise particle retention while maintaining optimal flow rates. Its hydrophilic nature allows for rapid wetting, making it suitable for aqueous solutions and biological samples. The filter is sterile, minimizing contamination risks during sensitive procedures. The uniform pore structure guarantees consistent filtration efficiency, while the robust construction ensures durability under varying pressure conditions. This filter is compatible with standard filtration apparatus, offering seamless integration into existing lab workflows. The white, grid-marked surface aids in particle visualization and counting, enhancing analytical accuracy. Whether used for routine sample preparation or critical research applications, the Whatman ME27/31 STL membrane filter delivers reliable, reproducible results with minimal extractables, preserving sample integrity.
FAQs
1. What is the material composition of the Whatman ME27/31 STL membrane filter?
This filter is composed of mixed cellulose esters, providing a balance of chemical compatibility and mechanical strength for diverse filtration needs.
2. Can this filter be used with organic solvents?
The hydrophilic nature of this membrane makes it less suitable for organic solvents; it is primarily designed for aqueous solutions and biological samples.
3. How should these filters be stored to maintain sterility?
Store in a cool, dry environment in their original packaging until use. Avoid exposure to direct sunlight or moisture to preserve sterility.
4. Is this filter compatible with vacuum filtration systems?
Yes, the Whatman ME27/31 STL membrane filter is fully compatible with standard vacuum filtration setups and pressure-driven systems.
5. What alternatives exist for filters with smaller pore sizes?
For finer filtration, consider Whatman ME25 (0.45µm) or ME24 (0.22µm) membrane filters, which offer higher particle retention for more demanding applications.
