General description

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.Caps are supplied with attachment loops, and allow them to remain attached to the tube in order to prevent mix-up and contamination. Perfect for cryogenic work Non skirted tubes can be centrifuged up to 20,000g. (skirted 17,000g.) Will withstand temperatures from -196°C to +121°CPlease note: Do not immerse during liquid phase of liquid nitrogen.