Description. Use Thermo Scientific™ 11mm Clear Glass Crimp/Snap Top Vials with snap caps or aluminum crimp seal closures. These high-quality 11mm clear glass vials are 2mL, 12x32mm and fit most brands of autosamplers. Made of superior quality 33 expansion borosilicate clear (Type 1, Class A), they meet all requirements of US, EU, JPN Pharmacopia.