TubeOne Microtrifuge Tubes, Natural Conservatively rated to 20,000 x g, but will perform to higher specification under optimal conditions. Supplied in resealable bags. Temperature range: -80 ℃ to 121 ℃. Autoclavable. Certified Rnase, Dnase, DNA and Pyrogen free Microtrifuge tube leak test Does your tube maintain a seal while heating? Although a tube may remain closed, evaporation can occur when a seal is incomplete. TubeOne passes the test with no leaks! Water-sensitive paper has a special-coated yellow surface that turns blue when exposed to moisture. This indicating paper. (A) was placed across the top of TubeOne (B) and other brands of tube (C-H), all containing 10 ml of 50% ethanol and incubated at 95 ℃ for 15 minutes in a dry bath with a tightly closed lid. Tubes C - H showed varying levels of failure.

