glass membrane filter holder
A glass membrane filter holder is an essential laboratory apparatus designed for precise filtration processes in scientific and industrial applications. This sophisticated device consists of high-quality borosilicate glass components that provide exceptional chemical resistance and durability. The holder typically features a funnel top, support base, and spring-loaded clamp that securely holds filter membranes in place during operation. Its design incorporates a ground glass joint system that ensures an airtight seal, preventing sample contamination and maintaining filtration efficiency. The holder accommodates various membrane filter sizes, typically ranging from 25mm to 90mm in diameter, making it versatile for different application requirements. Advanced models include features such as graduated markings for volume measurement, vacuum ports for pressure filtration, and specialized fritted glass supports that provide uniform flow distribution. The transparent glass construction allows for visual monitoring of the filtration process, enabling operators to ensure proper sample processing and identify any potential issues immediately. These holders are particularly valuable in applications requiring sterile filtration, particle analysis, or the preparation of analytical samples, making them indispensable in pharmaceutical laboratories, environmental testing facilities, and research institutions.