Aijiren volatile organic analysis vials for soil borosilicate type EPA water analysis vials for soil USA These EPA Vials are also referred to as VOA (Volatile Organic Analysis) vials EPA vials provideTwo sizes available in clear or aer neutral glass Standard 28 mm o.d. with heights of 57 mm (20 mL) and 95 mm (40 mL) Glass that meets ASTM Type I Class A. Collecting Vials at EPA storage vials