Clamp-top vials are generally used in laboratories. The vial is made of colorless Class 1 Type A or Amber Class 1 Type B borosilicate glass, and a writable label is attached to the vial as needed for sample identification. The autosampler vial has high temperature resistance and corrosion resistance; the lid is made of aluminum alloy, and the septum of the autosampler vial is made of the highest quality materials to ensure proper function. It is widely used in multiple injections and/or more. Long sampling cycle design as well as gas chromatography and liquid chromatography.