Suitable for CTC PAL and Thermo Scientific TriPlus autosamplers port for up to 81 sample vials (1.5 ml, 1.8 ml and 2 ml) or flat-. 8mm Amber Glass Screw Thread Vials - Thermo Fisher Scientific These high-quality amber glass 8mm crimp/snap top vials are ideal low-volume sample vials for 6mm, 7mm and 8mm autosampler trays.