Screw Top Vials and Closures

Screw Top Headspace Vials and Closures from Thermo Scientific

Thermo Scientific 18 mm Screw Top Headspace Vials require no tools for closure. Manufactured with superior quality (Type 1, Class A) glass, they are available with a round bottom which enable magnetic pick up in autosamplers with that capability. Multiple turn threading maintains a tight seal through extreme heating cycles.

Choose from Thermo Scientific National and Thermo Scientific Chromacol brands.

Screw Top Vials and Closures

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Features
  • Superior quality 1st hydrolytic class glass (Type 1) in clear and amber, meets all requirements of Pharm. US, EU, JPN
  • Round bottom vials are compatible with most autosamplers and more easily handled by robotic arms that lift the vial from the tray
  • Use magnetic seals with PAL/CTC/Leap Technologies, Gerstel and other magnetic transport autosamplers
  • Pre-assembled caps and septa are convenient and minimize contamination from handling
  • Extended temperature range products for high-temperature headspace applications
Specifications

Temperature Stability Chart

Seal Material Max Temperature °C
PTFE/Bromobutyl 120
Chlorobutyl 120
PTFE/Red Rubber 120
PTFE/Butyl (Pharmafix) 125
PTFE/Blue Silicone 200
PTFE/White Silicone 200
PTFE/Red Silicone 300
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