24mm 40ml VOA vials manufacturer Shimadzu-Voa Vial Supplier Usually this kind of Vias is 40ml Screw Neck Vial. The specifications of 24mm Purge and Trap Vials produced by Aijiren are 27.5*95mm, 5.0type borosilicate glass, 40ml capacity, and are often used in TOC&Purge and Trap System. Chat Now 40ml TOC Vial - hplcvials.com Package. 100pcs/pp box.