Septa quality, as well as vial quality, is important to ensure rugged and reproducible analytical results, day in day out. Our range of ultra-low bleed septa offers the ultimate in purity and inertness. Eliminate potential contamination from septa which can lead to interferences, inaccuracies and failures which ultimately effects lab productivity. A range of septa combinations area available for standard analytical and headspace applications. The 1.3 mm thick septa are recommended for SPME applications.