Amber Volumetric Flask Class B with PE Stopper, BORO 3.3
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Amber Volumetric Flask Class B supplied by LabChoice Australia is designed for dependable volumetric preparation where light protection is required, with tolerances suited to routine laboratory, teaching and general QC workflows. The amber glass body helps protect light sensitive solutions during preparation and short term storage, making these flasks a practical choice for schools, universities, environmental testing and industrial laboratories handling reagents that can degrade under laboratory lighting.
Manufactured from premium BORO 3.3 borosilicate glass, these flasks deliver excellent chemical resistance and thermal stability for everyday analytical use. BORO 3.3 glass quality aligns with ISO 3585 and ASTM E438 Type 1 Class A expectations for borosilicate laboratory glass, supporting durability in common aqueous reagents, dilute acids and many solvents. The amber finish reduces photodegradation risk while still allowing clear visual control of filling and mixing.
Each Amber Volumetric Flask Class B is produced to Class B tolerance requirements in accordance with ISO 1042 and ASTM E288 expectations for one mark volumetric flasks, providing consistent capacity at the stated reference temperature, typically 20°C. The narrow neck and single calibration line support controlled meniscus setting, while the flask geometry enables efficient mixing after make up. Stopper options, commonly supplied in chemically resistant polymer or matched glass where applicable, are selected to provide secure closure and reduce evaporation or contamination during handling.
All amber Class B volumetric flasks supplied by LabChoice Australia are sourced with ISO 9001 aligned quality management controls and inspection routines focused on dimensional conformity and functional performance. Typical checks include calibration mark placement verification, capacity conformity assessment against the stated tolerance class, visual inspection for surface defects and uniform amber coverage, and stopper fit verification to support reliable sealing. These measures help ensure consistent, fit for purpose performance for laboratories needing cost effective volumetric glassware with added UV and light protection.