Ace Glass 8781-20 40 mL EPA TOC Clear Glass Vial with Holed Cap

40 mL vials fabricated in either USP Type I Class A clear borosilicate glass. Vials have open top caps with a PTFE faced silicone septa type lining. The 40 mL vials with the open top caps are for EPA protocol 40CFR136 guidelines. These vials are not pre-cleaned or certified.