Designed for collecting soil samples for VOA testing using methods where a pierce able cap is not required. Thermo Scientific Wide-Mouth Closed-Top VOA Glass Jars are available in clear or amber Type III glass. Closed-top cap has a bonded PTFE liner that can't fall out. Amber jars are recommended for light-sensitive analytes. Available Certified to meet EPA performance-based specifications for Volatile Organic Analysis or Processed the same way as the certified vials but without certification documentation.