4.0 ml round-bottom cryotubes (100 pcs.)

Alpha is designed for the secure storage of biological material as well as human or animal cells at extremely low temperatures and has three ranges of CE-marked cryogenic storage vials.

All products in this range are certified RNase, DNase, Pyrogen and DNA free. Alpha Laboratories' cryo-vials are available in either a self-standing or round-bottom format. All types feature an internal rounded base for easy sample retrieval.

Robust vial and closure - a special grade of polypropylene is used to manufacture all our vials chosen for its consistent strength. This allows both the vial and cap to withstand the harsh temperature of liquid nitrogen in the vapour phase of -196°C, and the thick wall makes the vial virtually unbreakable.
Please note they are not suitable for use in the liquid phase.


Secure seal - the cap and tube are made from the same material so they will shrink and expand simultaneously with changes in temperature, providing an equally secure seal at both room temperature and low cryogenic temperatures.
Quick open/close - 1¼ turns is sufficient to securely close the cap. This is important when large numbers of vials are being used as it saves time and reduces the risk of the cap not being securely sealed.
Easy one-handed operation - all self-standing vials, when used with a workstation (LW3400B or LW3400R), enable the vials to be unscrewed with one hand. Vertical ribs facilitate cap removal
Clear graduation - at 100l intervals to assist in the reading of your sample volume.

Large white marking area - for sample identification and identification.
Tubes can be colour coded using a cap insert (LW3339 series) and are compatible with most storage systems. Cap inserts are available in 11 different colours. Cap inserts are not compatible with LW3439.
Only round bottom vials can be centrifuged at up to 17,000 g.
Sterile - all vials are gamma irradiated to ensure absolute sterility.
Certified free of RNase, DNase, Pyrogens, Human DNA and metals
Supplied in tamper-evident, resealable bags - clean and sterile.


Various cryoboxes are available for the organised storage of samples in cryotubes. Please refer to the "Racks" section of our catalogue or our website for further details.


The Classic range
- designed for basic safety
The internal thread with silicone washer between cap and vial ensures a leak-proof seal at all temperatures. Designed to improve safety compared to standard screw cap microcentrifuge tubes.
"The Classic" uses a square cross-section washer tightly compressed between the cap and the top of the tube wall, ensuring a secure, leak-proof seal at all temperatures.

Specification:

• Working volume: 3.6 ml
• Tube style: Round bottom
• Closure type: Classic
• Height: 70 mm
• Diameter: 12.5 mm
• Graduations: Yes
• Writing area: Yes
• Sterile: Yes
• Material: Polypropylene
• Certification: CE marked; Free of RNase, DNase, Pyrogens, Human DNA and Metal

Packaging: Supplied in tamper-evident, resealable bags containing 100 vials