Standard opening 2ml hplc 0-425 glass vial with inserts Sigma 2021 - 11 - 17 Standard opening screw-thread vials are manufactured from borosilicate glass and have a maximum fill volume of 2 ml. HPLC 9mm Screw Top 2ml Vials for aijiren Save time in sample preprocessing and reduce the risk of contamination with the Ajiren 9-425 screw sample vial convenience kit.