Iso-Vials are made from a special grade of polypropylene which produces a product of optimum clarity. Unique design offers users a leak-proof fit with only one-half turn of a cap.
Detailed information can be found here.

System Configuration
Compatible with all major liquid scintillation counting systems
Dimpled bottoms to facilitate filter-paper counting
Nominal volume of 7 mL
Ideal for sample storage
Vials are autoclavable