Headspace Vial,Screw Top,Round Bottom,18mm,Glass & Amber
A rounded bottom is more sturdy and thus more resistant to the high pressure within the vial during the heating process. 10ml, 20ml clear or Amber precision screw vial. Magnetic screw caps 8mm center hole. Septa are blue PTFE sample side; White Silicone outside. 10ml and 20ml screw headspace vial is widely used in Headspace and GC, GCMS application