Glass Vials 5 Ml found in: Disposable Borosilicate Glass Scintillation Vials, 20 mL Glass Scintillation Vials without Caps, VOA Vials, EPA Vials, 13mm.. these vials are assembled with the following materials: Type 1 borosilicate glass, PTFE/silicone septa, and a polypropylene cap. PTFE/silicone septa, and a polypropylene cap.