This ND8 threaded borosilicate glass sample vial has an 8mm opening, 32mm height and 11.6mm bottom diameter. Equipped with a 1.5mm PTFE/silicone septum and PP screw cap, it achieves reliable leak-proof and wide chemical compatibility. Designed specifically for GC/HPLC autosamplers, the precision thread enables fast, tool-free closure, simplifying sample operation procedures