Wheaton® Lab File™ Glass Environmental Analysis Vials with Open Top Screw Cap & Septa
Wheaton glass sample vials are designed for environmental analysis and are packaged in a handy Lab File™ storage case. Vials are made of Wheaton 33® clear low extractable borosilicate glass. Especially suited for research studies where stability of the glass is of prime importance. White polypropylene open top caps have a specially designed septum of 5mil of PTFE resin facing 0.12mil of silicone. The attached white polypropylene open-top screw caps are glass filled to provide extra chemical and heat resistance compared to standard polypropylene. The PTFE-faced silicone septum is bonded to the cap and provides a permanent seal. Vials meet ASTM Type 1 Class A and USP Type 1 standards. Vials are autoclavable. 20mL Capacity. 60 H x 28mm Diameter. Clear. Type I Borosilicate Glass. Screw Thread Finish Type. 24-400 Cap Size. White Cap. Available in clear or amber glass in 20mL, 25mL and 40mL sizes.