Description
Specifications Table
Product Name – Whatman Grade GF/D Glass Microfibre Filter
Quantity/Pack Size – 7MM (Pack of 100), 1CM (Pack of 100), 2.1CM (Pack of 100), 2.4CM (Pack of 100), 2.5CM (Pack of 100), 3.5CM (Pack of 100), 4.25CM (Pack of 100), 4.7CM (Pack of 100), 5.5CM (Pack of 100), 7CM (Pack of 100), 9CM (Pack of 25), 11CM (Pack of 25), 12.5CM (Pack of 25), 14.2CM (Pack of 25), 15CM (Pack of 25), 25.7CM (Pack of 25), 46x57CM (Pack of 25)
Form – Circular Discs
Grade – GF/D (Glass Microfibre, High Flow Rate)
Application – Filtration of aqueous solutions, organic solvents, air monitoring, and particulate analysis
Product Overview
Whatman Grade GF/D glass microfibre filters are engineered for applications requiring high flow rates and superior particle retention. Constructed from 100% borosilicate glass microfibres, these filters combine mechanical strength with chemical resistance, making them suitable for both aqueous and organic solvent filtration. The GF/D grade features a nominal particle retention of 2.7 ?m, ensuring efficient removal of fine particulates while maintaining rapid filtration speeds. Their uniform pore structure minimizes clogging, extending filter life and reducing replacement frequency. The filters are binder-free, eliminating potential leachables that could interfere with sensitive analyses. Their thermal stability allows for use in high-temperature applications, including gravimetric analysis and air pollution monitoring. The inert nature of borosilicate glass ensures compatibility with a wide range of chemicals, from strong acids to organic solvents. Each filter undergoes rigorous quality control to guarantee consistent performance across batches. The variety of available diameters accommodates diverse filtration setups, from small-scale laboratory experiments to large-volume industrial processes. Their smooth surface facilitates easy particle recovery for subsequent analysis. The filters’ white color provides excellent contrast for visual inspection of retained particles. When used with appropriate filtration apparatus, these filters deliver reliable, reproducible results across multiple applications.
FAQs
1. What is the particle retention rating for Whatman GF/D filters?
Whatman GF/D filters have a nominal particle retention rating of 2.7 ?m, making them effective for capturing fine particulates while maintaining high flow rates.
2. Can these filters be used with organic solvents?
Yes, GF/D filters are compatible with most organic solvents due to their borosilicate glass composition, which provides excellent chemical resistance across a wide pH range.
3. How should these filters be stored for long-term use?
Store the filters in their original packaging in a cool, dry environment away from direct sunlight and chemical vapors to maintain their performance characteristics.
4. What makes GF/D different from other Whatman glass microfibre grades?
GF/D filters offer a unique combination of high flow rate and fine particle retention (2.7 ?m), distinguishing them from other grades that may prioritize either flow rate or retention but not both.
5. Are these filters suitable for air pollution monitoring?
The high particle loading capacity and thermal stability of GF/D filters make them well-suited for air pollution monitoring applications where consistent performance is required.
