clear vial septa closure for HPLC vial Sigma-Aijiren HPLC Vials Sigma 20ml thread headspace glass vials in borosil for GC/MS 20 mL, 30 mL, 40 mL and 60 mL vials in clear and amber glass of 1st hydrol. class glass Bonded Silicone/PTFE closures, thread design 24-414, open/closed top, most frequently used in combination with the 40 mL vial Vial container available for 20 mL, 30
