Clear vials are manufactured from WHEATON 33 low extractable borosilicate glass that conforms to USP Type I and ASTM E438 Type I, Class A requirements. Amber vials are manufactured from WHEATON 320 amber glass that conforms to USP Type I requirements.

• Amber vials protect light-sensitive analytes from break-down
• Clear vial with open top black phenolic PTFE faced silicone lined cap
• Amber vial with open top white polypropylene PTFE faced silicone lined cap
• Closures are assembled to vials

The EPA Vial is ideal for use in water sampling according to EPA 40 CFR 136, 'Guidelines for Establishing Test Procedures for the Analysis of Pollutants'.