Description
Specifications Table
Product Name – Whatman Grade 934-AH RTU Glass Microfibre Filter for Solids
Quantity/Pack Size – 70MM (Pack of 100)
Form – Pre-cut circles
Grade – 934-AH (Glass Microfibre, Binder-Free)
Application – Gravimetric analysis, air monitoring, solids filtration
Product Overview
The Whatman Grade 934-AH RTU Glass Microfibre Filter is engineered for precision and reliability in demanding laboratory applications. Constructed from 100% borosilicate glass microfibres without binders, this filter ensures exceptional chemical resistance and thermal stability, making it ideal for critical filtration tasks. The 934-AH grade is specifically designed for high-efficiency particulate retention, with a nominal particle retention of 1.5 µm, ensuring accurate gravimetric analysis and solids separation. Its ready-to-use (RTU) format eliminates the need for pre-treatment, saving valuable lab time while maintaining consistency. The filter’s smooth surface and uniform porosity minimize clogging, allowing for faster flow rates and extended use. Whether used in air monitoring, environmental testing, or general solids filtration, this filter delivers consistent performance with minimal extractables, ensuring data integrity. The absence of organic binders further enhances its suitability for applications requiring high-purity results, such as trace metal analysis or solvent-based filtrations. Durable and dimensionally stable, the Whatman 934-AH filter withstands temperatures up to 500°C, making it versatile for both wet and dry filtration processes. Its compatibility with a wide range of aggressive chemicals, including strong acids and bases, ensures adaptability across diverse laboratory workflows. Each filter undergoes rigorous quality control to meet Whatman’s exacting standards, guaranteeing lot-to-lot consistency for reproducible results. For laboratories prioritizing accuracy, efficiency, and reliability, the Whatman Grade 934-AH RTU Glass Microfibre Filter is an indispensable tool for high-stakes filtration challenges.
FAQs
1. What is the particle retention capacity of Whatman Grade 934-AH filters?
The Whatman Grade 934-AH filter has a nominal particle retention of 1.5 µm, making it highly effective for fine particulate filtration and gravimetric analysis.
2. Can this filter be used with organic solvents?
Yes, the binder-free borosilicate glass composition ensures compatibility with most organic solvents, including acetone, methanol, and dichloromethane, without degradation.
3. How should these filters be stored to maintain performance?
Store the filters in their original packaging in a cool, dry environment away from direct sunlight and moisture to prevent contamination or physical damage.
4. Is pre-washing required before use in gravimetric applications?
No, the 934-AH filters are ready-to-use (RTU) and do not require pre-washing, though some protocols may recommend drying at 105°C for 1 hour to stabilize weight.
5. What alternatives exist for higher particle retention needs?
For finer particulate retention (e.g., 0.7 µm), consider Whatman Grade GF/F or Grade 934-PH filters, though these may have different chemical resistance profiles.
