9mm 2ml Hplc Screw Vials for Chromatography Jun 16, 2020 · Standard open screw vials are made of borosilicate glass with a maximum filling volume of 2ml. 9mm screw thread caps, septa, and 9mm 2ml Hplc Screw Vials are designed especially for use with Aijiren's and other rotating or robotic arm samplers. 9mm 2ml Hplc Screw Vials are manufactured of Clear glass,Type 1