Description
Specifications Table
Product Name – Whatman GLS HLDR Glass holder, FNL with GLS frit
Quantity/Pack Size – 25MM, 25ML (Pack of 1) | 47MM, 300ML (Pack of 1) | 90MM, 1000ML (Pack of 1)
Form – Glass holder with fritted disc
Grade – Laboratory/Analytical
Application – Filtration (gravity/vacuum), sample preparation, particle separation
Product Overview
The Whatman GLS HLDR Glass Holder with Fritted Disc is engineered for precision filtration in laboratory settings, combining durability with exceptional performance. Constructed from high-quality borosilicate glass, this holder resists thermal shock and chemical corrosion, ensuring reliable operation across a wide range of applications. The integrated glass frit provides uniform porosity for consistent filtration results, whether used in gravity-fed or vacuum-assisted setups. Its ergonomic design includes a sturdy base and smooth joints for secure connections to filtration flasks or adapters, minimizing leaks during critical procedures. The holder?s transparent construction allows real-time monitoring of filtrate clarity, while its compatibility with standard lab glassware makes it a versatile addition to any workflow. Designed to meet analytical-grade standards, this holder is ideal for particle retention, solvent clarification, or sample preparation where precision and reproducibility are paramount. The three available sizes (25MM/25ML, 47MM/300ML, and 90MM/1000ML) cater to varying sample volumes, from small-scale experiments to larger batch processing. Each unit undergoes rigorous quality control to ensure dimensional accuracy and frit integrity, guaranteeing long-term reliability in demanding lab environments.
FAQs
1. What type of frit material is used in this Whatman glass holder?
The holder features a glass frit made from the same borosilicate material as the body, ensuring chemical compatibility and consistent porosity for reliable filtration performance.
2. Can this holder be autoclaved for sterilization?
Yes, the borosilicate glass construction allows for autoclaving at standard lab sterilization temperatures (typically 121?C), making it suitable for aseptic applications.
3. Is this holder compatible with standard lab filtration setups?
The holder is designed with standard taper joints (e.g., 24/29 or 29/32) to seamlessly integrate with common filtration flasks, adapters, and vacuum systems used in most laboratories.
4. How do I determine the correct frit porosity for my application?
The frit porosity is pre-selected for general lab use, but for specialized applications, consider the particle size you need to retain?coarser frits (e.g., 40?60 ?m) suit larger particles, while finer frits (e.g., 4?5.5 ?m) are ideal for sub-micron filtration.
5. What is the maximum vacuum pressure this holder can withstand?
The holder is engineered to handle typical lab vacuum pressures (up to ~700 mmHg), but always secure connections and monitor for stress cracks, especially when using thick-walled glassware or high-vacuum pumps.
