Vials, screw top, clear glass, 1.5 mL volume 1.5 mL, clear. Autosampler needle pierces through the cap during injection and withdraws the required aliquots of sample from the vials. Screw top vials (volume 1.5 mL, clear glass, O.D. × H. 11.6 mm × 32 mm) are used on many autosamplers with a standard opening of 6 mm. Send Inquiry Chat Now.