ND18 Headspace Fine thread caps and vials

ND denotes the nominal diameter. ND 18 designates a headspace vial with fine thread. The vials fit into standard autosamplers.

Fine thread vials ND18 are intended for headspace analysis. In order to eliminate difficulties and risks of flanging and to reproducibly increase the tightness of the sample bottles, instrument manufacturers strive to keep the sealing process as simple as possible.