FAQ: Corning PS Round-Bottom Test Tube 14mL (Product No. 352001):

1/ What is the Corning 352001 test tube?

The Corning 352001 is a sterile, polystyrene round-bottom test tube with a dual-position polyethylene snap cap, designed for single-use laboratory sampling and centrifugation applications. It is individually wrapped and supplied 500 tubes per case.

2/ What are its dimensions and maximum capacity?

The tube measures 17mm in outer diameter and 100mm in height, providing a nominal capacity of 14mL.

3/ What materials are used in the tube and cap?

The tube body is made of high-clarity polystyrene, and the snap cap is molded from polyethylene. The dual-position cap offers both vented (open) and fully closed settings to protect samples and facilitate gas exchange during procedures.

4/ How does the dual-position snap cap work?

In the “vented” position, the cap allows pressure equilibration or gas exchange, useful during centrifugation or culture. Switching to the “closed” position creates a secure seal that prevents leaks and sample loss, reducing contamination risk.

5/ Are the tubes sterile and free of pyrogens and nucleases?

Yes, these tubes are gamma-irradiation sterilized and certified RNase/DNase-free. They have been tested for nonpyrogenicity to less than 0.1 EU/mL, making them suitable for sensitive biological and diagnostic assays.

6/ What is the maximum centrifugation force the tubes can withstand?

The polystyrene tubes are rated for up to 1400G without deformation or leakage, supporting most routine centrifugation protocols.

7/ How are the tubes packaged and how should they be stored?

Tubes are individually wrapped in sterile packaging and packed 500 per case. Store unopened cases in a clean, dry environment at room temperature, away from direct sunlight and ozone sources to maintain sterility and material integrity.

8/ Can these tubes be reused or autoclaved?

No. The polystyrene material is not compatible with steam sterilization or autoclaving. They are intended for single use to preserve sterility and prevent deformation.

9/ What types of samples are these tubes suitable for?

These tubes are ideal for liquid samples such as serum, plasma, culture media, buffer solutions, and light suspensions. They should not be used with aggressive organic solvents (e.g., toluene) or exposed to temperatures above 60°C for extended periods.

10/ How does a round-bottom tube compare to a conical-bottom design?

Round-bottom tubes facilitate uniform mixing and do not require specialized racks for centrifugation. They are preferred for cell separation, resuspension, and general liquid handling. Conical bottoms concentrate pellets at a single point, which can be advantageous for certain protocols but may require dedicated accessories.

11/ How do I order by part number and what are the bulk options?

Use product number 352001 to order a single case of 500 tubes

Please contact QTE Technologies for more information.

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