PP, with O-ring seal screw cap (without attachment loop), autoclavable.

• The O-ring secured in the top of the cap ensures a positive leakproof seal, time after time, keeping the integrity of small samples under even the most adverse conditions
• Sterile tubes are gamma irradiated and available either plain or with printed graduations and white marking area for sample identification
• Can be autoclaved to +121 °C in upright position with caps loosened
• Certified RNase-, DNase-, pyrogen- and DNA-free

Ideal for cryogenic work as well as freezer storage, boiling applications, centrifugation etc. and will fit most standard microcentrifuge rotors. The cap's high profile facilitates manipulation especially in aseptic procedures. The cap does not have attachment loops for users who prefer to remove the caps completely from the tubes when filling or sampling.

Max. RCF: Non skirted tubes can be centrifuged up to 20000×g.

Temperature range: –196 to +121 °C.