Flat Bottom Glass Test Tubes

Stable Flat-Bottom Design

 

We possess 12 years of extensive experience in the manufacturing of laboratory glass consumables. These flat bottom glass test tubes were developed specifically to address the inconvenience associated with traditional round-bottom test tubes-namely, their tendency to roll away. These tubes are widely utilized in various experimental settings, including chemical titrations, colorimetric sample reactions, and ambient-temperature culturing. Their unique flat-bottom design allows them to stand securely on laboratory benchtops or in test tube racks without the need for any additional support. They are ideally suited for batch experiments and procedures requiring samples to remain stationary for extended periods, making them an indispensable staple in every laboratory.

We manufacture these flat-bottom glass test tubes using high-quality 3.3 borosilicate glass, a material free from lead and arsenic. This material exhibits exceptional chemical stability and can withstand extreme temperature fluctuations ranging from -18°C to 140°C. We employ fully automated tube-drawing processes and integrated flat-bottom firing techniques to ensure the tube bodies are highly transparent, free of bubbles, and devoid of impurities. The flat bottoms are smooth and perfectly level, with a flatness tolerance controlled to within ≤0.1 mm. We conduct a 100% quality inspection on every single test tube to ensure dimensional accuracy within ≤0.15 mm and uniform wall thickness, thereby effectively eliminating the risk of breakage during use.
Superior Practicality: Helping You Reduce Laboratory Consumable Costs
The tube bodies feature clear, printed volume graduations with a reading tolerance controlled to within ≤0.8%, enabling you to precisely control sample volumes during a wide range of daily experiments. The tube mouths are precision-engineered to form a tight seal with rubber or cork stoppers, ensuring excellent containment. Furthermore, these test tubes are designed for repeated washing and can withstand high-pressure autoclaving at 121°C without deformation. We offer a three-year warranty on all our products. For bulk purchasing requirements, we provide customization services for specific specifications; additionally, we guarantee a stable supply chain to fully meet the high-frequency daily usage demands of your laboratory. Thanks to their exceptional reusability, these test tubes will help you effectively reduce your overall procurement costs for laboratory consumables.

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