Description
Specifications Table
Product Name – Whatman Grade 113 FF Cellulose Filter Paper
Quantity/Pack Size – 12.5CM (Pack of 100) | 15CM (Pack of 100) | 18.5CM (Pack of 100) | 24CM (Pack of 100) | 27CM (Pack of 100) | 32CM (Pack of 100) | 50CM (Pack of 100)
Form – Round sheets
Grade – 113 FF (Fast Flow)
Application – General filtration, sediment analysis, air monitoring
Product Overview
Whatman Grade 113 FF cellulose filter paper is engineered for high-efficiency filtration in demanding laboratory environments. Constructed from 100% pure cellulose fibers, this grade delivers exceptional flow rates while maintaining particle retention down to 25-30 ?m, making it ideal for applications requiring both speed and precision. The fast-flow (FF) designation ensures rapid liquid passage without clogging, reducing processing time in routine and high-volume tasks. Its inherent wet strength and chemical resistance allow reliable performance with aqueous and mild organic solutions, including alcohols and dilute acids. The smooth surface minimizes particle shedding, ensuring sample integrity during critical procedures. Available in multiple diameters (12.5CM to 50CM), each pack contains 100 pre-cut circular sheets that fit standard filtration apparatus without requiring additional trimming. The consistent thickness and porosity across batches guarantee reproducible results, while the acid-washed treatment removes trace metals and extractables that could interfere with sensitive analyses. This grade balances affordability with professional-grade quality, making it a staple in research, quality control, and industrial labs where dependable filtration is non-negotiable.
FAQs
1. What is the particle retention range for Whatman Grade 113 FF filter paper?
This grade retains particles in the 25-30 ?m range, offering a balance between flow rate and filtration efficiency for general lab applications.
2. Can this filter paper be used with organic solvents like acetone or ethanol?
Grade 113 FF is compatible with mild organic solvents including ethanol and isopropanol, but prolonged exposure to strong solvents like acetone may compromise its integrity.
3. How does the flow rate of Grade 113 FF compare to standard qualitative filter papers?
The fast-flow (FF) designation indicates a flow rate approximately 2-3 times faster than standard qualitative grades like Whatman Grade 1, due to its optimized porosity and fiber structure.
4. Is this filter paper suitable for gravimetric analysis?
While it offers good wet strength, Grade 113 FF is not ashless and contains trace binders, so it is not recommended for precise gravimetric analysis where ash content must be negligible.
5. What storage conditions are recommended to maintain the filter paper?s performance?
Store in a cool, dry environment (15-30?C, 30-50% humidity) in its original packaging to prevent moisture absorption or contamination from lab airborne particles.
