EPA Vials , Clear Glass That Meets ASTM Type I Class A And USP Type I Standards.Caps And Seals Manufactured From High Purity Polypropylene With Silicone/PTFE Injection Septa. EPA VialsThe Environmental Protection Agency (EPA) Is Responsible For Monitoring Of Analytical Standards Used For Environmental Analysis In The USA.Much Of This Analysis Is Applied To The Testing Of Water Supplies For The Presence Of Potentially Harmful Chemicals.These Chemicals Include Pesticides, Herbicides And Polycyclic Aromatic Hydrocarbons. (PAH)The Collection And Processing Of These Water Samples Has Been Controlled By Defining The Type Of Vials Used For This Stage Of The Analysis.The EPA Vials Are Defined By Their Size, Volume And Their Degree Of Cleanliness.EPA Vials Are Also Referred To As VOA (Volatile Organic Analysis) Vials.

• Glass that meets ASTM Type I Class A and USP Type I standards · Caps and seals manufactured from high purity polypropylene with silicone/PTFE injection septa.