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Thermo Scientific™ Nalgene™ General Long-Term Storage Cryogenic Tubes
Beschreibung
Enhance aseptic techniques with externally threaded Thermo Scientific™ Nalgene™ General Long-Term Storage Cryogenic Tubes. These storage tubes are ideally suited for research and general laboratory storage of high-value and genomic materials down to vapor phase liquid nitrogen temperatures.
Features:
- Large writing areas accommodate more written sample information and graduations for easy visual volume assessment
- Noncytotoxic raw materials for added sample security and tubes certified free of Dnase and RNase for genomic applications
- External threading enhances aseptic technique
- Certified SAL of 10-6 for the highest sterility assurance available
- Suitable for storage from general cold storage refrigeration (+4°C) down to the vapor phase of liquid nitrogen
- System 100 tubes offer a more dense storage option (10x10) to save precious storage space
- Self-standing tubes for ease of use on the benchtop
- Blank, nonsterile and uncapped tubes available in bulk for less demanding applications
Spezifikation
Spezifikation
| Closure Color | Clear |
| Diameter (English) Outer | 0.46 in. |
| Autoclavable | Not Autoclavable |
| Capacity (Metric) | 1.5 mL |
| Bottom Shape | Conical |
| Material | Polypropylene |
| Thread Style | External |
| Length (English) | 1.87 in. |
| No. per Case | 500 |
| No. per Pack | 25 |
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Frequently Asked Questions (FAQs)
Both types are designed and tested for secure cryogenic storage, so it’s largely a matter of personal preference. In an externally threaded vial (in which the cap covers the entire top portion of the vial itself), the underside of the cap is protected when unscrewed), which can minimize the potential for cross-contamination. In an internally threaded vial (in which the vial threads are inside the neck area and the cap inserts like a plug), the cap is the same diameter as the vial itself which can be helpful in certain types of dense storage applications.
Liquid nitrogen has very low surface tension, so it can flow into any of our cryostorage vials even if they are tightly capped. This creates significant potential for cross-contamination in storage as well as risk of injury from explosion when the vials are removed from storage and the liquid nitrogen boils off. The only option to mitigate this is Nunc Cryoflex tubing (e.g., Cat. No. 343958), which results in a heat-sealed barrier layer around each vial. Alternatively, storage in the vapor phase of liquid nitrogen is acceptable unless otherwise noted.
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