The Vista Vial™ 1.0mL volume glass base is constructed of Type 1 borosilicate glass in either clear or amber. The polyethylene top accommodates 8-425mm standard and 9mm R.A.M. screw thread closures ...

Katherine Calhounassociate scientist The vial of modified bacteria is swirled into a flask of amber-colored growth medium ... to get the liquid vaccine into vials and then into deep freeze.