Test Tubes Round Bottom, Rimless, Heat Resistant, BORO 3.3 Glass
From $31.00 (Ex GST)
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Rimless test tubes supplied by LabChoice Australia provide clean, uniform and chemically inert vessels for heating, mixing, culturing and general sample manipulation across educational, analytical and industrial laboratory environments. Manufactured from high clarity BORO 3.3 borosilicate glass that complies with ISO 3585 and ASTM E438 Type 1 Class A standards, these tubes deliver excellent thermal shock resistance, chemical durability and long term structural stability. The absence of a rim provides a smooth, unobstructed opening ideal for flame sealing, rubber stopper insertion and workflows requiring clean tube edges.
Each rimless tube features uniform wall thickness, a smoothly rounded base and a precision cut top that supports reliable compatibility with stoppers, caps and closures. The clear BORO 3.3 construction ensures full visibility of reactions, precipitates, colour changes and clarity variations during heating or analytical examination. The rimless design is particularly suited for microbiology, anaerobic preparation, culture growth, distillation micro set ups and sealed tube reactions.
Rimless test tubes are widely used in chemical synthesis, biological culturing, qualitative analysis, sample storage, centrifuge preparation and educational science programs. Their strong borosilicate structure supports heating over Bunsen burners, immersion in water or oil baths, repeated autoclaving and flame sealing where appropriate. The smooth opening also reduces the risk of chipping during repeated handling and cleaning, supporting long term consistent performance.
All rimless test tubes supplied by LabChoice Australia undergo ISO 9001 aligned quality control inspection. This includes dimensional accuracy checks, wall thickness measurement, edge uniformity assessment, thermal shock testing and clarity evaluation. Tubes are fully validated for compliance with ISO 3585 and ASTM E438 performance standards governing laboratory borosilicate glassware. These rigorous quality measures ensure safe, reliable and precise operation for laboratories requiring high quality rimless test tubes.