Description
Specifications Table
Product Name – Whatman Grade 934-AH Glass Microfibre Filter
Quantity/Pack Size – 2.1CM (Pack of 100), 2.4CM (Pack of 100), 2.5CM (Pack of 100), 2.8CM (Pack of 100), 3.0CM (Pack of 100), 3.2CM (Pack of 100), 3.5CM (Pack of 100), 3.7CM (Pack of 100), 4.25CM (Pack of 100), 4.7CM (Pack of 100), 5.5CM (Pack of 100), 7.0CM (Pack of 100), 8.26CM (Pack of 100), 8.5CM (Pack of 100), 9.0CM (Pack of 100), 10.5CM (Pack of 100), 11CM (Pack of 100), 12.5CM (Pack of 100), 15CM (Pack of 100), 18.5CM (Pack of 100), 24CM (Pack of 100), 32CM (Pack of 100), 2x12IN (Pack of 100), 8x10IN (Pack of 100), 12x15IN (Pack of 100), 19x28IN (Pack of 100)
Form – Circular Discs
Grade – 934-AH
Application – High-efficiency filtration of fine particles, air/gas monitoring, and liquid clarification
Product Overview
The Whatman Grade 934-AH Glass Microfibre Filter is engineered for superior performance in demanding laboratory filtration tasks. Composed of 100% borosilicate glass microfibres, this filter offers exceptional particle retention efficiency, making it ideal for capturing sub-micron contaminants. Its high loading capacity ensures prolonged service life, reducing the need for frequent replacements. The filter’s inherent chemical resistance allows compatibility with aggressive solvents, acids, and bases, while its thermal stability enables use in extreme temperature conditions up to 500°C. The smooth surface and uniform pore structure minimize clogging, ensuring consistent flow rates and reliable results. Whether used for air/gas monitoring, liquid clarification, or gravimetric analysis, the 934-AH grade provides unmatched precision and reproducibility. Its low extractable content further enhances its suitability for sensitive analytical applications. Available in a wide range of diameters, this filter adapts seamlessly to various filtration setups, from small-scale bench experiments to large-volume industrial processes. The robust construction ensures mechanical strength, preventing tearing or deformation during handling or high-pressure operations. Trusted in research labs, environmental testing, and pharmaceutical quality control, the Whatman 934-AH sets the benchmark for high-performance glass microfibre filtration.
FAQs
1. What is the maximum temperature resistance of Whatman 934-AH filters?
These filters can withstand continuous exposure to temperatures up to 500°C, making them suitable for high-temperature applications.
2. Are these filters compatible with organic solvents?
Yes, the borosilicate glass composition provides excellent resistance to most organic solvents, acids, and alkalis.
3. How does the particle retention compare to cellulose filters?
Grade 934-AH offers superior retention of fine particles (down to 0.3 μm) compared to standard cellulose filters, with higher loading capacity.
4. Can these filters be autoclaved for sterilization?
Yes, they are fully autoclavable at 121°C without compromising structural integrity or filtration performance.
5. What binder material is used in these filters?
The filters contain a minimal amount of acrylic binder, which is uniformly distributed to maintain strength without affecting chemical resistance.


