Oct 26, 2021 · transparent EPA VOA vials agent Aijiren Tech Aijiren TechbrandClass A Clear Glass Threaded Vials with Caps, PTFE-faced White | Aijiren Tech 202/6/30 · Also available: pre-cleaned EPA (Environmental Protection Agency) vials for VOA (volatile organic analysis), with or without certification, and fitted white polypropylene open top caps with PTFE faced silicone septa This product(s) resides on a Aijiren Tech