Vials- EPA / TOC / VOD - CLEAR GLASS 20ml, 28*57 mm

• Glass that meets ASTM Type-1, class-A and USP Type-1 standards
• Caps and seals manufactured from high purity polypropylene with silicone/ PTFE injection septa
• Vials, caps and septa pre-assembled to reduce possible contamination
• Coefficient of linear expansion clear glass 51 x 10-7/oC & amber glass
54 x 10-7/oC.
• Trays are shrink wrapped to preserve cleanliness