40 Ml Amber Vials at Thomas Scientific. 40 Ml Amber Vials found in: 40 mL Sample Vial In Lab File, Clr, No Cap, Vial S / T Amber 2ml No Graduation, Thomas TomCap® Vials, Screw neck vials (EPA), N.. these vials are assembled with the following materials: Type 1 borosilicate glass, PTFE/silicone septa, and a polypropylene cap.