laboratory Chromatography Autosampler Vial with cap and septa. 21/1/2021 · 2ml 10-425 Certified Screw top HPLC vial The sample vial standard is 4.6mm and large opening is 6.0mm, certified vial size is 11.6x32mm. 2ml screw autosampler vials are available in both clear and amber glass. 2ml screw autosampler vials come with a variety.