Cole-Parmer Precleaned EPA Vials One vial, a multitude of uses Precleaned and EPA / Precleaned VOA/TOC 40 mL GH-99536-32 A Precleaned Vials meet strict EPA requirements. Usage Capacity Catalog number Price/ cs of 72 VOA 20 mL GH-99536-10 VOA/TOC 40 mL GH-99536-12 VOA/TOC 60 mL GH-99536-16 B Precleaned Vials with Certificate of