Shimadzu’s Guide to Vial Selection. Sodium is a common element found in Features of Shimadzu Vials and Septa 1st hydrolytic class and silanized glass ials are packaged in a cleanroomV Contamination-free septa production 1.5mL screw vials, 100/pack 4mL screw vial kit, including vial, cap and septa, 100/pack