

You will be redirected to your browser's interface for printing and saving as a PDF.
Choose the option that's best for you from the "Destination" drop-down menu.

Blue screw caps from PP: with lip seal and matching colour pouring rings. Autoclavable at 121 °C (max. temp. 140 °C).
Red high temperature screw caps from PBT: High leak tightness through use of PTFE coated silicone seal (peroxide-cured silicone). More chemically and heat resistant than PP screw cap. Autoclavable at 121 °C, can also be sterilised in dry heat at 180 °C.
Suitable for PBT screw caps. Heat resistance: 130 °C (vapour) and 200 °C (dry heat), autoclavable at 121 °C. Good chemical resistance due to PTFE coating. Silicon is peroxidically cured.
Retrace Code: Certificate and batch monitoring for the DURAN flasks with GL45 thread; obtain a certificate directly from the internet through a special 8 digit code inscribed on the flask.