CERTIFIED POLYPROPYLENE BONDED CAPS WITH SEPTA, PKG OF 100

9 mm cap, PTFE/silicone septum (with slit), dark blue polypropylene cap D.E. × Al × D.I. 11.5 mm × 6 mm × 9 mm. Certified polypropylene bonded caps with septa, pkg of 100 are manufactured using virgin resins to eliminate the possibility of sample contamination. Caps are molded to ensure consistency in fit, thread specification and overall dimensions. The PTFE/silicone septa are manufactured, conditioned and then tested by GC/MS to ensure they have the lowest level of extractable in the industry.