PS tubes: Not autoclavable. Temperature resistant from −40 to +90 °C. Can be centrifuged up to 1500×gPP tubes: Autoclavable up to +121 °C. Temperature resistant from −90 to +135 °C. Can be centrifuged up to 3000×gPress in stopper or dual position push on cap available for pressure equalisation or gas exchange whilst ensuring that the cap cannot fall off