of a screw cap vial with the integrity of a crimp vial, I-D™ vials have write-on patches graduated at 0.5, 1.0 and 1.5 ml. Also compatible with Perkin-Elmer, Shimadzu and Varian GC and LC autosamplers and Waters, Hitachi and Beckman LC autosamplers. Silanized vials have been treated