Dec 15, 2022 · 18mm transparent headspace vials online for GC/MS Perkin Elmer Headspace vial, beveled top, rounded bottom volume 20 mL, clear glass vial, O.D. × H × I.D. 23 mm × 75.5 mm × 12.5 mm, for use with PerkinElmer, pkg of 100 ea; find Supelco-SU860049 MSDS, related peer-reviewed papers, technical documents, similar products & more at Sigma-Aldrich.