Description
Specifications Table
Product Name – Whatman Grade QMC Quartz Microfibre Filter
Quantity/Pack Size – 37MM (Pack of 100), 47MM (Pack of 100), 82.6MM (Pack of 100), 90MM (Pack of 100), 110MM (Pack of 100), 150MM (Pack of 100), 8x10IN (Pack of 25), 8x10IN (Pack of 100)
Form – Circular discs and sheets
Grade – QMC (Quartz Microfibre)
Application – High-temperature filtration, gravimetric analysis, air pollution monitoring
Product Overview
Whatman Grade QMC Quartz Microfibre Filters are engineered for applications requiring superior thermal stability and chemical resistance. Composed of 100% pure quartz fibers, these filters maintain structural integrity even at temperatures up to 900?C, making them indispensable for gravimetric analysis and high-temperature filtration processes. The uniform fiber distribution ensures consistent particle retention, while the binder-free composition eliminates potential contamination risks. Their low weight loss on ignition (<0.1%) guarantees accurate analytical results, particularly in environmental monitoring and industrial emissions testing. The filters are available in multiple diameters and sheet sizes to accommodate diverse filtration setups, from standard lab funnels to large-scale sampling equipment. Their inert nature makes them compatible with aggressive solvents and corrosive gases, while the smooth surface facilitates easy particle collection and analysis. The quartz composition provides exceptional durability, reducing the risk of fiber shedding that could compromise results. These filters represent the gold standard for applications where thermal stability and chemical inertness are critical performance factors.
FAQs
1. What is the maximum operating temperature for Whatman Grade QMC filters?
These filters can withstand continuous operation at temperatures up to 900?C without significant degradation or weight loss.
2. Are these filters suitable for use with acidic or alkaline solutions?
The pure quartz composition provides excellent resistance to most acids and alkalis, making them suitable for filtration in aggressive chemical environments.
3. How does the particle retention compare to cellulose-based filters?
QMC filters offer superior particle retention for fine particulates due to their dense quartz fiber matrix, particularly for particles in the sub-micron range.
4. What is the typical weight loss on ignition for these filters?
The weight loss on ignition is less than 0.1%, ensuring minimal interference with gravimetric analysis results.
5. Can these filters be autoclaved for sterilization?
Yes, the quartz composition allows for repeated autoclaving without compromising filter integrity or performance.
