DURAN^®. ISO 4796-1, DIN ISO 718. Premium laboratory bottle with DIN thread. Highly leak-tight using Premium screw cap. Working temperature from -196 °C up to 200 °C. With PTFE coated silicone seal and pouring ring. With additional reverse scale, accuracy ±5%. Thermal shock resistance of 160K (tested by the German TÜV and with GS mark). Bottle and screw cap in accordance to USP/EP guidelines (Glass Type I / Neutral glass, screw cap raw material USP Class VI, seal FDA). Screw cap material is similar to PFA and highly resistant against chemicals. The material is free from colourants and therefore no leaching takes place. DMF available upon request. Premium bottle and screw cap fulfil highest requirements of the pharmaceutical, chemical and food industry. With Retrace code (Batch identification). Certificate available via the Internet (available for cap and bottle). Autoclavable.