The United Scientific Borosilicate Glass Rimmed Test Tubes are engineered for versatility and longevity in the laboratory. Manufactured from high-quality, pre-cleaned borosilicate glass, these tubes are designed to withstand rapid temperature changes, making them ideal for both heating over a Bunsen burner and storage in cold environments. The integrated rim (beaded top) provides significant mechanical strength, reducing the risk of breakage during handling and allowing for more secure grip with test tube clamps. These tubes are fully reusable and can be repeatedly autoclaved without compromising the glass's structural integrity or clarity.
Choose from a wide range of outer diameters and capacities to fit your specific racks and centrifuge rotors. Available in convenient small packs or bulk value cases.
Features:
Mechanical Reinforcement: The rimmed top strengthens the most vulnerable part of the tube, minimizing chipping during pouring or cleaning
Thermal Shock Resistance: Borosilicate glass allows for safe heating of samples and can transition from heated plates to cooling racks without cracking
Chemical Durability: Highly resistant to most acids, bases, and organic solvents, preventing sample contamination from leached ions
Stopper Compatibility: Necks are precisely finished to provide a tight seal with standard rubber stoppers (refer to the stopper sizing chart in the product specifications)
Laboratory Management Insights:
Autoclaving Tip: When sterilizing tubes containing liquids, ensure they are placed in a rack that allows for proper steam circulation. Do not seal with a tight-fitting stopper during the autoclave cycle to avoid pressure-induced failure.
Heating Safety: Always use a test tube holder when heating over an open flame and point the mouth of the tube away from yourself and others to prevent "bumping" accidents.
Reuse Protocols: For high-purity research, ensure tubes are cleaned with a non-abrasive brush and rinsed with deionized water to prevent residue buildup that can etch the glass over time.
The United Scientific Borosilicate Glass Rimmed Test Tubes are engineered for versatility and longevity in the laboratory. Manufactured from high-quality, pre-cleaned borosilicate glass, these tubes are designed to withstand rapid temperature changes, making them ideal for both heating over a Bunsen burner and storage in cold environments. The integrated rim (beaded top) provides significant mechanical strength, reducing the risk of breakage during handling and allowing for more secure grip with test tube clamps. These tubes are fully reusable and can be repeatedly autoclaved without compromising the glass's structural integrity or clarity.
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Borosilicate Glass Rimmed Test Tubes
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