Headspace vials are made of borosilicate glass and have a thicker glass wall. Can withstand higher temperature and internal pressure necessary in GC for the analysis of volatile gas in the headspace of the vial.
N 18 Headspace screw vials
N 20 Headspace crimp vials in multiple sizes
Magnetic N 18 Headspace screw caps
N 20 Headspace crimp caps and septa
Stoppers for N 20 Headspace vials