• Extended temperature range, low-bleed
• Maximum temperature 400°C *
• Virtually eliminates injection-port sticking
• Each batch GC-FID tested
• Ideal for use with low-bleed, "Mass Spec" capillary columns

Septa BTO is Bleed and Temperature Optimized for today's most demanding GC and GC/MS applications. Septa BTO is formulated to extend low-bleed and outstanding mechanical properties of premium GC septa to the highest-temperature applications. It retains remarkable softness and piercability at high temperatures, with extremely low bleed. Septa are 3mm thick, except Shimadzu-style plug septa, and are packaged in glass vials.

* For 17mm injectors the maximum is 330°C