Vials and Septa – Laboratory Consumables | Shimadzu. Vials and Septa to meet your application: 1.5mL, 4mL, 10mL and 20mL headspace vials, EPA screw vials, crimpers and decappers, MS Certified Kits . Thermo Fisher volatile organic analysis vials cap and septa . Thermo Scientific™ Septa Caps include a bonded-in 0.045 in. thick septa.