11 mm Wide Opening Glass Crimp/Snap Top Vials, Thermo Scientific. Vials Chromatography Vials. Use Thermo Scientific 11 mm Crimp/Snap Top Vials with snap caps or aluminum crimp seal closures. These high-quality 11 mm glass vials are 2 ml, 12×32 mm and fit most brands of autosamplers. Made of superior quality 33 expansion borosilicate clear Type 1, Class A or 51A Type 1, Class B amber glass, they meet all requirements of US, EU, and JPN Pharmacopia.