Description
Specifications Table
Product Name – Whatman Grade 0858 FF Cellulose Filter Paper
Quantity/Pack Size – 150MM (Pack of 100), 185MM (Pack of 100), 240MM (Pack of 100), 270MM (Pack of 100), 320MM (Pack of 100), 185MM (Pack of 100), 240MM (Pack of 100), 320MM (Pack of 100), 140x190MM (Pack of 500)
Form – Circular & Rectangular Sheets
Grade – 0858 FF (Fast Flow)
Application – General-purpose filtration, sample clarification, and particle retention in labs
Product Overview
Whatman Grade 0858 FF cellulose filter paper is engineered for high-performance filtration in laboratory settings, offering an optimal balance of flow rate, particle retention, and mechanical strength. Constructed from 100% pure cellulose fibers, this filter paper ensures minimal extractables and consistent results across diverse applications. Its fast flow (FF) grade designation indicates a medium retention capacity (8?12 ?m), making it ideal for routine filtration tasks where speed and efficiency are critical. The paper?s inherent wet strength prevents tearing or deformation during use, even under moderate pressure or with viscous liquids. Chemically inert and compatible with a wide range of solvents, acids, and bases, it maintains integrity in both aqueous and organic systems. The uniform pore structure guarantees reproducible filtration, while the smooth surface minimizes particle shedding or fiber release. Available in multiple diameters and sheet formats, this filter paper adapts to various filtration setups, from Buchner funnels to gravity-fed systems. Its high loading capacity reduces clogging, extending usable life in high-volume applications. Rigorously tested for consistency, Whatman 0858 FF meets stringent quality standards, ensuring reliability in research, quality control, and industrial labs. The absence of binders or additives preserves sample purity, while the natural cellulose composition allows for easy disposal or incineration. Whether used for clarifying solutions, removing particulates, or preparing samples for downstream analysis, this filter paper delivers dependable performance without compromising on purity or structural integrity.
FAQs
1. What is the particle retention range for Whatman 0858 FF filter paper?
The retention range is approximately 8?12 micrometers, classifying it as a medium-speed filter paper suitable for general-purpose applications.
2. Can this filter paper be autoclaved for sterile applications?
Yes, Whatman 0858 FF can be autoclaved at standard conditions (121?C, 15 psi) without significant degradation, provided it is dry before sterilization.
3. How does the flow rate compare to other Whatman grades like 1 or 4?
Grade 0858 FF offers a faster flow rate than Grade 1 (11 ?m) but slower than Grade 4 (20?25 ?m), balancing speed and retention for versatile use.
4. Is this filter paper compatible with organic solvents like acetone or methanol?
Yes, it is chemically resistant to most organic solvents, though prolonged exposure to strong oxidizing agents may affect performance.
5. What?s the difference between 0858 FF and 0858 S&S grades?
The FF variant is optimized for faster flow, while S&S (Schleicher & Schuell) grades may prioritize retention or specific chemical compatibility.
