Description
Specifications Table
Product Name – Whatman Grade 602EH FF Cellulose Filter Paper
Quantity/Pack Size – 90MM (Pack of 100), 125MM (Pack of 100), 150MM (Pack of 100), 185MM (Pack of 100), 240MM (Pack of 100)
Form – Circular sheets
Grade – 602EH FF
Application – General lab filtration, qualitative analysis, particle retention
Product Overview
Whatman Grade 602EH FF is a premium cellulose filter paper engineered for high-efficiency lab filtration. Manufactured from pure cotton linters, this acid-washed filter paper ensures minimal extractables and consistent performance across diverse applications. Its fast flow rate (Herzberg: ~15 sec) and medium retention (12-15 ?m) make it ideal for routine filtration tasks where speed and clarity are critical. The paper?s inherent chemical resistance allows compatibility with a wide range of solvents and aqueous solutions, while its lint-free surface prevents sample contamination. The 602EH FF grade is particularly valued for its balance of strength and porosity, reducing clogging during particulate-heavy filtrations. Each sheet undergoes strict quality control to maintain uniform thickness and pore distribution, ensuring reproducible results. Whether used in gravity or vacuum filtration setups, this filter paper delivers reliable separation without fiber shedding. Its neutral pH and low ash content (<0.06%) further enhance suitability for sensitive analytical procedures. The pack includes pre-cut circles in standard diameters, eliminating the need for manual trimming and saving lab time. Designed for single-use applications, this filter paper maintains integrity even under moderate pressure differentials, making it a staple in research and educational laboratories.
FAQs
1. What is the particle retention range for Whatman 602EH FF filter paper?
This grade retains particles in the 12-15 micron range, making it suitable for medium-coarse filtration tasks where faster flow rates are preferred over ultra-fine retention.
2. Can this filter paper be used with organic solvents like acetone or ethanol?
The 602EH FF grade demonstrates good chemical compatibility with most common organic solvents, including acetone, ethanol, and methanol, though prolonged exposure to highly aggressive solvents may affect performance.
3. How does the flow rate of 602EH FF compare to Whatman Grade 1?
Grade 602EH FF offers a significantly faster flow rate (Herzberg ~15 sec) compared to Grade 1 (~110 sec), making it better suited for applications where rapid filtration is prioritized over fine particle retention.
4. Is this filter paper autoclavable for sterile applications?
While the cellulose material can technically withstand autoclaving, Whatman does not recommend this grade for sterile applications due to potential fiber degradation and lack of sterilization validation.
5. What?s the difference between 602EH and 602H grades?
The 602EH FF features an extra-hard surface finish compared to the standard 602H, providing enhanced wet strength and reduced tendency to tear during filtration of challenging samples.
