4.0 ml self-standing cryo tubes (100 pcs)

Designed for the safe storage of biological material and human or animal cells at extremely low temperatures, Alpha features three series of CE-marked cryogenic storage vials.
All products in this range are certified RNase, DNase, Pyrogen, and DNA free. Alpha Laboratories' cryovials are available in either self-standing or round bottom formats. All types feature an internal rounded base for easy sample retrieval.

Strong vial and closure – a special grade of polypropylene is used for the manufacture of all our vials, selected for its consistent strength. This allows both vial and cap to withstand the high temperature of liquid nitrogen 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 – cap and tube are manufactured from the same material so they will shrink and expand at the same rate with changes in temperature ensuring an equally secure seal at both room temperature and low ultralow temperatures.
Quick opening/closing – 1 ¼ turns are sufficient to securely seal 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), allow vials to be unscrewed with one hand. Vertical ridges facilitate cap removal.
Clear graduation – in 100 µl intervals, to assist with reading your sample volume.

Large white marking area – for sample identification.
Tubes can be colour-coded with a cap insert (LW3339 range) 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 RNase, DNase, Pyrogen, Human DNA and Metal Free
Supplied in tamper-evident, resealable bags – clean and sterile.


Ultimate Security Range
External thread with flanged/washer combination
Each Ultimate Security vial features a silicone sealing washer compressed on all four sides, plus an internal flange that secures the seal and reduces the risk of contamination to the cap. This unique combination provides the highest level of security for your most valuable samples.


Specification:

• Working volume: 3.8 ml
• Tube style: Freestanding
• Closure type: Ultimate Security
• Height: 77 mm
• Diameter: 12.5 mm
• Graduations: Yes
• Writing area: Yes
• Sterile: Yes
• Material: Polypropylene
• Certification: CE marked; RNase, DNase, Pyrogen, Human DNA, and Metal Free

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