TLG® 10 mL and 20 mL crimp style, clear glass headspace vials and associated 20 mm headspace caps are engineered to prevent sample contamination while providing consistent, secure seals. These headspace vials come in both flat- and round-bottom styles for use in a wide variety of headspace instrument platforms. Our headspace vials are a perfect fit for a wide variety of applications, including pharmaceutical, environmental, energy and fuels, forensics, materials science, biopharmaceutical, proteomics, and metabolomics.