Chrominex volatile organic analysis vials with screw cap-Voa Vial 2021 - 08 - 12 Chrominex volatile organic analysis vials with screw cap MOP Vol. IX Procedure – P‐ Volatile Organic Compounds Water 5.2 Amber glass sample vials or bottles and Teflon lined screw caps or screw caps with Teflon faced silicon septum.