Headspace Vials with Rounded Bottoms Use in Perkin Elmer, Tekmar, CTC PAL, and Varian Use in Aijiren, DANI, Fisons, Perkin Elmer and Shimadzu All Glass Vials are available Silanized. All Glass Vials are available Silanized. Headspace vials and closures must form a tight seal for accurate analysis with reproducible results. Available in clear