wWidely apply to air, water, soil analysis test, also pesticide residue, pharmaceutical manufacturing and forensic test. EPA/TOC Vials & Closures UltraVial - EPA/TOC 40mL 27.5x95mm Amber Glass EPA/TOC Vial 24-400 White Open Top PP Screw Cap with 22mm Natural PTFE/White Silicone 3.0mm thick Septa (EPA Quality). Ref.No. C0000334 C0000335 Description