Chrominex glass shell vials manufacturer-HPLC Vial Inserts Vial capacity is 1 dram (3.7ml or 1/8 ounce) and outside dimensions are 15mm OD x 45mm tall. One pack of 12 vials and caps. These vials are not recommended for storing chemicals of any type. Chat Now Chrominex standard opening gas chromatography vials with high Vials Chromatography Vials.