Test Tube

Modern Laboratory Test Tubes for Research and Education

Test tubes on AliExpress now offer professional-grade borosilicate glass and durable plastics at competitive factory prices. These supplies meet international lab standards, ensuring safety and precision for scientific experiments or creative storage. Modern manufacturing allows for high-clarity materials and leak-proof seals that were previously much more expensive.

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Related keywords

Use these keywords to refine your search and find exactly what you're looking for.

borosilicate glass tube plastic screw cap tube centrifuge test tube graduated culture tube flat bottom tube rimless glass tube sterile sampling tube cork stopper tube

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Test Tube: FAQ

How do I ensure the test tube fits my existing rack?

Always check the diameter and height in millimeters (mm) rather than relying on volume alone. AliExpress listings provide detailed dimensions; compare these to your rack's hole diameter for a perfect fit.

How can I tell if the glass is heat-resistant borosilicate?

Look for '3.3 Borosilicate' in the description. High-quality borosilicate glass has a low thermal expansion coefficient, making it safe for open flames and rapid temperature changes.

What indicates a high-quality plastic test tube?

Check for 'BPA-free' and 'Polypropylene (PP)' labels for chemical resistance. Thick-walled tubes with reinforced rims are less likely to crack during high-speed centrifugation.

Will glass test tubes arrive without breaking during shipping?

Check seller reviews specifically for 'packaging' or 'bubble wrap' mentions. Reliable lab suppliers use custom foam inserts or thick corrugated boxes to ensure fragile items arrive intact.

Recommendations for buyers

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Material Selection
Choose borosilicate glass for heat applications and chemical stability, or polystyrene/polypropylene for disposable, cost-effective sampling.
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Closure Types
Select screw caps for leak-proof transport, cork stoppers for aesthetic storage, and snap caps for quick laboratory access.
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Graduation Marks
For precise measurements, look for permanent, high-contrast printed or molded graduations that won't fade after sterilization.
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Bottom Shape
Use round bottoms for easy cleaning and heating, or conical bottoms for centrifugation and sediment collection.