Our EPA VOA vials are made from Type 1 borosilicate glass that features excellent chemical-resistance, thermal properties, and clarity. These VOA vials are specifically designed for use with volatile organic compounds and are often used for environmental sampling. Our VOA vials are certified under the EPA CFR Part 136 and under EPA 40 CFR 141 with a temperature range of -40C to 125C. VOA vials include an open-top cap with Teflon faced septa liner. (1 Dram = .0625 oz).