Buchner Filtering Flask with Side Arm, Jointed, Borosilicate Glass (BORO 3.3)
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Büchner flasks with side arm and jointed connections supplied by LabChoice Australia provide a robust, vacuum compatible vessel for filtration, solvent removal and analytical sample preparation across teaching, industrial and research laboratories. Manufactured from high strength BORO 3.3 borosilicate glass that complies with ISO 3585 and ASTM E438 Type 1 Class A standards, these flasks deliver exceptional thermal stability, chemical durability and resistance to mechanical stress during vacuum operations. The reinforced side arm allows secure attachment to vacuum tubing, pumps and manifolds, supporting efficient liquid separation and solid phase recovery.
Each flask features a precision ground joint manufactured to ISO 383 and ASTM E676 specifications, ensuring full interchangeability with standard Büchner funnels, adapters and filtration accessories. The conical body and thick, uniform walls provide enhanced resistance to implosion under reduced pressure, supporting safe vacuum filtration with aqueous solutions, solvents and particulate samples. The high clarity BORO 3.3 glass allows visual inspection of filtrate clarity, vacuum stability and filtration progress without disrupting the setup.
Jointed Büchner flasks are widely used in microbiology, organic synthesis, environmental testing, pharmaceutical QC, materials research and general laboratory workflows. They support vacuum assisted filtration of precipitates, crystals, reaction mixtures, cell suspensions and analytical samples requiring fast, efficient separation. The jointed neck enables leak free integration with glass funnels and adapter systems, maintaining a stable vacuum seal for reproducible filtration performance.
All Büchner flasks with side arm and jointed connections supplied by LabChoice Australia undergo ISO 9001 aligned quality control inspection. This includes dimensional verification, wall thickness measurement, vacuum retention testing, joint taper accuracy checks and thermal shock evaluation. Flasks are validated for conformity with ISO 3585 and ASTM E438 borosilicate glass performance requirements, along with ISO 383 and ASTM E676 standards governing joint interchangeability. These rigorous assessments ensure long lasting, safe and reliable filtration performance for laboratories requiring precision engineered vacuum glassware.