Description
Specifications Table
Product Name – Whatman Grade 589/3 Blue Ribbon Filter Paper
Quantity/Pack Size – 12.8MM (Pack of 1000), 110MM (Pack of 100), 125MM (Pack of 100), 150MM (Pack of 100), 185MM (Pack of 100)
Form – Circular Filter Paper
Grade – 589/3 (Medium Retention)
Application – General Lab Filtration, Gravimetric Analysis, Sample Preparation
Product Overview
Whatman Grade 589/3 Blue Ribbon Filter Paper is a high-performance filtration medium designed for demanding laboratory applications. Engineered with a unique blend of cellulose fibers, this filter paper delivers exceptional wet strength and chemical resistance, ensuring consistent results even under rigorous conditions. The medium retention grade (589/3) makes it ideal for filtering fine to medium-sized particles, providing a balance between flow rate and particle capture. Its blue ribbon indicator helps monitor filtration progress, while the uniform porosity guarantees reliable separation efficiency. The paper is acid-washed to minimize impurities, making it suitable for analytical and preparative procedures where purity is critical. With its robust construction, it resists tearing and deformation, even when wet, ensuring long-lasting performance in repetitive or high-volume filtration tasks. Whether used in qualitative or quantitative analysis, this filter paper maintains integrity across a wide pH range, from acidic to alkaline solutions. Its compatibility with common lab solvents further enhances its versatility, making it a staple in research, industrial, and educational laboratories.
FAQs
1. What is the particle retention range for Whatman Grade 589/3 Blue Ribbon Filter Paper?
The particle retention range is approximately 4-7 microns, making it suitable for medium retention applications.
2. Can this filter paper be used with organic solvents?
Yes, it is compatible with most common organic solvents, though prolonged exposure to strong solvents may affect its structural integrity.
3. How does the blue ribbon indicator function during filtration?
The blue ribbon serves as a visual aid to track the filtration process, darkening as it becomes saturated with filtrate.
4. Is this filter paper pre-sterilized?
No, it is not pre-sterilized but can be autoclaved if sterilization is required for specific applications.
5. What is the typical ash content of this filter paper?
The ash content is less than 0.06%, ensuring minimal interference in analytical procedures.


