Headspace ND18 vials with screw neck manufactured from 1st hydrolytic class borosilicate glass with a round bottom. They can be purchased with a variety of magnetic aluminium screw caps and septa materials.

• High performance caps/septa
• Thinner septa for better headspace usage
• Perfect sealed vials (precision thread)
• Thicker wall 1,2 mm withstand higher internal pressure

Headspace ND18 vials are available in two different sizes (10 and 20 ml) in amber or clear version. The vials have a precision thread for easy handling (quick open and close) and have a round bottom. During the heating process a rounded bottom vial is more resistant and robust to high pressure. Magnetic aluminium screw caps mostly available with assembled stopper or septa are engineered to prevent sample contamination while providing consistent, secure seals.