2021/03/25 · Color: Brown Features: 2ml sample vial are made of high quality borosilicic acid glass,low content of free ions,low coefficient of expansion and very high 8mm Amber Glass Screw Thread Vials - Thermo Fisher. These low-volume sample vials are ideal for 6mm, 7mm and 8mm autosampler trays. vials as a unit to injection positions in both GC and HPLC