Precleaned Volatile Organic Analyte, VOA Sampling Vials, Restek | VWR - VWR, Part of Avantor - Chemicals and Laboratory Scientific SuppliesPrecleaned Volatile Organic Analyte, VOA 40ml Clear Vial found in: 40mL Clear Vial, TOC Certified 40mL Clear Vial, 10ppb, 24-414mm Open Top Closure, 0.068" septa, 72/case, Assembled VOA.. compound analysis.