11mm Crimp Top Vials & Caps Basik™ Crimp Top autosampler vials are made of first hydrolytic, Type-1, N51A expansion, borosilicate glass. These vials are used with many Aijiren, CTC PAL, Perkin-Elmer, Shimadzu, and Thermo autosamplers. An excellent choice for budget minded laboratories that want the security of aluminum crimp top vials.