Description
Specifications Table
Product Name – Whatman Grade 1 FF Quadrant Fold Filter Paper
Quantity/Pack Size – 110MM (Pack of 500), 125MM (Pack of 500), 150MM (Pack of 500)
Form – Quadrant Fold
Grade – Grade 1
Application – General lab filtration, qualitative analysis
Product Overview
Whatman Grade 1 FF quadrant fold filter paper is a trusted choice for laboratories requiring reliable and consistent filtration. Engineered with high-purity cellulose, this filter paper ensures minimal extractables and superior particle retention, making it ideal for general laboratory applications. The quadrant-fold design maximizes surface area, enhancing filtration efficiency while maintaining a fast flow rate. Its uniform thickness and smooth surface reduce clogging, ensuring consistent performance across repeated uses. The Grade 1 classification signifies a medium retention level, balancing speed and particle capture for qualitative analysis. This filter paper is chemically resistant, compatible with a wide range of solvents and aqueous solutions, and maintains integrity under varying pH conditions. Whether used in routine lab work or specialized research, Whatman Grade 1 FF delivers precision and reliability, minimizing sample loss and contamination risks. Its sterile packaging preserves quality, while the pack sizes cater to both small-scale and bulk requirements, ensuring cost-effective solutions for laboratories of all sizes.
FAQs
1. What is the retention capacity of Whatman Grade 1 FF filter paper?
Whatman Grade 1 FF filter paper has a particle retention of approximately 11 micrometers, making it suitable for general filtration tasks where moderate particle capture is required.
2. Can this filter paper be used with organic solvents?
Yes, Whatman Grade 1 FF filter paper is compatible with most organic solvents, including alcohols, ketones, and hydrocarbons, without compromising its structural integrity.
3. How does the quadrant-fold design improve filtration?
The quadrant-fold design increases the effective surface area, allowing for faster filtration while maintaining uniform particle distribution and reducing clogging risks.
4. Is this filter paper pre-sterilized?
While the filter paper is not pre-sterilized, it is manufactured under controlled conditions to minimize contamination and is packaged to maintain cleanliness until use.
5. What alternatives are available for finer particle retention?
For finer particle retention, consider Whatman Grade 42 or Grade 541 filter papers, which offer higher retention capacities for more demanding applications.

