Apr 06, 2021 · Certified Vials and Kits Vials for Mass Spectrometry . 29384-UCertified Kits, screw thread vials, 12 x 32 mm, 9 mm thread, unasseled, pkg of 100 volume 2 mL, clear glass vial (with graduated marking spot), PTFE/silicone septum (with slit), (septa bonded to cap)