Short wide-mouth septa jars are suitable for soil sampling. Available in clear or amber Type III glass with open-top polypropylene closures bonded with a 0.045 in. thick PTFE/silicone septa. Now available tare weighted in the 60 mL size. I-CHEM Certified® 200 and 300 series bottles are guaranteed to meet the EPA’s Performance Based Specifications for Volatile Organic Analysis. Not certified for TOC.