Description
Specifications Table
Product Name – Whatman Grade 3459 Cellulose Filter Paper
Quantity/Pack Size – 230MM (Pack of 1000)
Form – Circular sheets
Grade – 3459 (High wet strength)
Application – General lab filtration, gravimetric analysis, environmental testing
Product Overview
Whatman Grade 3459 cellulose filter paper is engineered for demanding laboratory filtration tasks where durability and chemical resistance are paramount. Constructed from high-purity cellulose fibers, this grade offers exceptional wet strength, making it ideal for applications involving aggressive solvents or prolonged filtration processes. The lint-free surface ensures particle retention without fiber shedding, while its uniform porosity guarantees consistent flow rates and reliable results. Unlike standard filter papers, Grade 3459 maintains structural integrity even when wet, reducing the risk of tears or deformation during critical procedures. Its neutral pH and low extractable content minimize interference with sensitive analyses, while the smooth surface facilitates easy sample recovery. The 230MM diameter provides ample surface area for high-volume filtration, and the pack of 1000 sheets offers cost-effective bulk supply for frequent users. This filter paper undergoes rigorous quality control to meet international standards, ensuring batch-to-batch consistency for reproducible laboratory outcomes.
FAQs
1. What is the maximum temperature resistance of Whatman Grade 3459 filter paper?
This filter paper can withstand continuous exposure to temperatures up to 120°C in dry conditions and maintains stability in most aqueous solutions at elevated temperatures.
2. Can this filter paper be used with acidic or alkaline solutions?
The chemical resistance of Grade 3459 allows it to perform reliably across a pH range of 0-14, though prolonged exposure to extreme pH may affect filtration efficiency.
3. How does the wet strength of Grade 3459 compare to standard filter papers?
Grade 3459 offers approximately 3-4 times greater wet strength than conventional cellulose filter papers due to its specialized fiber treatment and bonding process.
4. What is the typical particle retention size for this filter paper?
The nominal particle retention is approximately 2-5 microns, though this can vary slightly depending on the specific application and filtration conditions.
5. Are there any special storage requirements for maintaining filter paper quality?
Store in a cool, dry environment (below 30°C and 50% humidity) in the original packaging to prevent moisture absorption and potential contamination from airborne particles.
