Screw neck vials ND15 and ND18 made of clear and amber first hydrolytic class glass in combination with the corresponding screw caps are highly suitable as sample storage vials.
Screw neck vials ND15 have a 15-425 thread. ND18 vials have a 18-400 thread.
Clear glass, rounded bottom, Suitable for headspace analysis (Perkin Elmer)
75.5 x 23.5