Test Tubes
Laboratory test tubes and culture tubes are used for sample collection, storage, transport, and general laboratory procedures across research, clinical, and industrial labs. Common sizes include 13 x 75 mm test tubes, 16 x 100 mm test tubes, and 17 x 100 mm culture tubes (14 mL), available in both polystyrene for optical clarity and polypropylene for improved chemical resistance and durability. Designed to fit standard laboratory racks and equipment, these tubes provide reliable performance for routine laboratory workflows including sample handling, culture work, and general testing applications.
Choosing the Right Test Tubes and Culture Tubes
Selecting the correct laboratory test tube depends on application, chemical compatibility, and handling requirements. Material type, tube size, and clarity all play a role in determining which tube is best suited for your workflow.
Whether you're performing sample storage, culture work, or general laboratory testing, here are the key factors to consider when selecting test tubes and culture tubes.
Tube size and volume:
13 x 75 mm and 16 x 100 mm test tubes are commonly used for sample storage, blood samples, and general laboratory procedures. 17 x 100 mm culture tubes (14 mL) are commonly used for microbiology, cell culture, and media preparation.
Material – Polystyrene (PS):
Polystyrene test tubes offer excellent optical clarity, making them ideal for visual sample inspection, colorimetric testing, and general laboratory use where chemical resistance is not critical.
Material – Polypropylene (PP):
Polypropylene test tubes provide better chemical resistance and higher temperature tolerance, making them suitable for centrifugation, heating, and more demanding laboratory applications.
Clarity:
Clear test tubes allow for easy sample visibility and measurement, which is important for many clinical and research applications.
Rim style and compatibility:
Standard test tubes are designed to fit common laboratory racks and closures, including snap caps or push caps depending on the application.
Sterility:
Sterile test tubes are recommended for microbiology, cell culture, and clinical applications where contamination must be avoided.
Packaging options:
Available in bulk packaging for high-volume laboratories or smaller packs for research labs and educational facilities.
For most general laboratory applications, polystyrene test tubes work well for sample handling and visual applications, while polypropylene test tubes are preferred when chemical resistance or centrifugation is required. Culture tubes in the 17 x 100 mm (14 mL) size are commonly used for microbiology and media applications.
If you need help selecting the right test tube material or size for your application, contact our team — we’re happy to help you choose the best option for your laboratory workflow.