Headspace Vials, Caps and Kits

Offering both screw-top & crimp-top headspace vials

Headspace vials are made of superior quality 1st hydrolytic class glass (Type 1) and have a thicker glass wall to withstand higher temperature and internal pressure for the analysis of volatile gas in the vial’s headspace. Thermo Scientific 20mm crimp top and 18mm screw top headspace vials are available in clear or amber glass in sizes ranging from 6mL to 27mL. Choose from a round or flat base with a beveled or square edge finish.

  • Round base vials are compatible with most autosamplers and more easily handled by robotic arms that lift the vial from the tray.
  • Flat base vials maximize heating efficiency in manual headspace sampling and are required for use in some instrument models.
  • The bevel edge on the lip of the vial provides additional sealing power for greater leak resistance under high pressure

Our screw top headspace vials are a novelty in a crimp-neck dominated field. They provide a ready-to-use, convenient solution that does not require crimping or decrimping tools. Headspace vials, septum and caps can be purchased in various quantities separately or as convenience kits.

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Thermo Scientific headspace vials and closures

20mm Crimp Top Headspace Vials

  • Superior quality 1st hydrolytic class glass (Type 1)
  • Headspace vials are available with either a round or flat base
  • Round bottom vials are compatible with most autosamplers and more easily handled by robotic arms that lift the vial from the tray
  • Flat bottom vials maximize heating efficiency in manual headspace sampling and are required for use in some instrument models
  • Vials feature beveled or square edge finish
  • The bevel edge on the lip of the vial provides additional sealing power for greater leak resistance under high pressure

20mm Crimp Top Headspace Vials

Catalog Brand Glass Size Neck Base Total Vol (mL) Useable Vol (mL) Product Size
C4020-60 National Clear 22x38 Beveled Flat 9 6 1000
C4020-6 National Clear 22x38 Square Rim Flat 9 6 1000
4020-10 National Clear 23x46 Beveled Flat 12.5 10 100
C4020-210 National Clear 23x46 Beveled Round 12.5 10 100
C4020-410 National Clear 23x46 Square Rim Flat 12.5 10 1000
C4020-20 National Clear 23x75 Beveled Flat 21.5 20 100
C4020-2 National Clear 23x75 Beveled Round 21.5 20 100
C4020-25 National Clear 23x75 Square Rim Flat 21.5 20 1000
C4020-27 National Clear 30x60 Beveled Flat 27 25 1000
27-CV Chromacol Clear 30x60 Beveled Flat 27 27 100
22-CV Chromacol Clear 23x75 Beveled Round 22 20 125
20-CV Chromacol Clear 22.5x75 Beveled Round 21 20 125
20-CV(A) Chromacol Amber 22.5x75 Beveled Round 21 20 125
12-CV Chromacol Clear 18x65 Beveled Round 12 10 100
10-CV Chromacol Clear 22.5x46 Beveled Round 12 10 125
10-CV(A) Chromacol Amber 22.5x46 Beveled Round 12 10 125
9-CV Chromacol Clear 18x50 Beveled Round 10 9 100
6-CV Chromacol Clear 22x38 Beveled Round 8 6 125

20mm Caps for 20mm Crimp Top Headspace Vials

  • Aluminum seals are available in standard center hole and pressure release versions
  • Pressure release seals (Aluminum-PR) are designed to open when internal pressure exceeds 3.0±0.5bar
  • Use magnetic tinplate seals with RSH/PAL/CTC/Leap Technologies, Gerstel and other magnetic transport autosamplers
  • Pre-assembled caps and septa are convenient and minimize contamination from handling

20mm Caps for 20mm Crimp Top Headspace Vials

Catalog Brand Crimp Cap Cap Color/Material Product Size
C4020-5A National 20mm Tear-off Crimp Cap Silver Aluminum 1000
C4020-3A National 20mm Crimp Cap, 9.5mm hole Silver Aluminum 1000
C4020-6A National 20mm Pressure Release Crimp Cap, 7.5mm hole Silver Aluminum -PR 1000
20-ACB Chromacol 20mm Crimp Cap, 9mm hole Silver Aluminum 500
20-MCB Chromacol 20mm Magnetic Crimp Cap, 6mm hole Silver Tinplate 500
20-MCBC Chromacol 20mm Composite Magnetic Crimp Cap, 8mm hole Blue Aluminum/Tinplate 500
20-MCBC(R) Chromacol 20mm Composite Magnetic Crimp Cap, 8mm hole Red Aluminum/Tinplate 500
20-PEPC5 Chromacol 20mm Plug Natural Polyethylene PE Membrane Natural Polyethylene 250

20mm Septa for 20mm Crimp Top Headspace Vials

Catalog Brand Septum Hardness °shore Thickness (mm) Pack of
C4020-30 National 20mm Gray Bromobutyl Stopper 37  – 1000
C4020-32 National 20mm Tan PTFE/White Silicone 45 3.2 100
C4020-34 National 20mm Gray PTFE/Red Rubber 50 3.0 100
C4020-36 National 20mm Gray PTFE/Black Butyl Molded 50 3.0 100
C4020-40 National 20mm Unfaced Black Rubber 55 3.0 100
20-B3P Chromacol 20mm Gray Bromobutyl Stopper 55 3.0 500
20-2FB3 Chromacol 20mm Gray Butyl Freezer Bung 55 3.0 2000
20-CB3 Chromacol 20mm Molded Gray Chlorobutyl 52 3.0 1000
20-CBT3 Chromacol 20mm Molded Gray Bromobutyl/Gray PTFE 52 3.0 1000
20-CBT3B Chromacol 20mm Molded Black Bromobutyl/Gray PTFE, Bellows Type 52 3.0 1000
20-ASH3 Chromacol 20mm Red Silicone/ Aluminum Face Seal 3mm Thick, for >170°C. 45 3.0 100
20-AS3 Chromacol 20mm White Silicone/ Aluminum Face Seal 3mm Thick, for <170°C. 45 3.0 100
20-LLX Chromacol 20mm Silicone/PTFE for liquid-liquid extraction  – 0.25 100
20-ST3 Chromacol 20mm Blue Silicone/ Natural PTFE 45 3.0 500
20-ST3HT Chromacol 20mm Red Silicone/ Natural PTFE, high temperature 45 3.1 100
20-ST15 Chromacol 20mm Blue Silicone/ Red PTFE Seal 1.5mm Thick 20 1.5 500
20-ST101 Chromacol 20mm Blue Silicone/ PTFE 30 1.0 500

20mm Cap-Septum Combination Seals for 20mm Crimp Top Headspace Vials

Catalog Brand Cap Cap Color/ Material Septum Hardness (°shore) Thickness (mm) Pack of
C4020-34A National 20mm Crimp Cap, 9.5mm hole Silver/ Aluminum 20mm Gray PTFE/ Red Rubber 50 3.0 100
C4020-34AP National 20mm Pressure Release Crimp Cap, 8mm hole Silver/ Aluminum-PR 20mm Gray PTFE/ Red Rubber 50 3.0 100
C4020-39A National 20mm Crimp Cap, 9.5mm hole Silver/ Aluminum 20mm Clear PTFE/ Gray Butyl Rubber 50 3.0 100
C4020-43AP National 20mm Pressure Release Crimp Cap, 8mm hole Silver/ Aluminum-PR 20mm Clear PTFE/ Gray Butyl Rubber 50 3.0 100
C4020-36A National 20mm Crimp Cap, 9.5mm hole Silver/ Aluminum 20mm Gray PTFE/ Gray Butyl Rubber, Pharmafix 50 3.0 100
C4020-36AP National 20mm Pressure Release Crimp Cap, 8mm hole Silver/ Aluminum-PR 20mm Gray PTFE/ Gray Butyl Rubber, Pharmafix 50 3.0 100
C4020-32A National 20mm Crimp Cap, 9.5mm hole Silver/ Aluminum 20mm Tan PTFE/ White Silicone 45 3.2 100
C4020-32AP National 20mm Pressure Release Crimp Cap, 8mm hole Silver/ Aluminum-PR 20mm Tan PTFE/ White Silicone 45 3.2 100
C4020-38A National 20mm Magnetic Crimp Cap, 5mm hole Gold/ Tin-plated 20mm Clear PTFE/ Translucent Blue Silicone 45  3.0 100
C4020-42A National 20mm Magnetic Crimp Cap, 8mm hole Gold/ Tin-plated 20mm Clear PTFE/ Translucent Blue Silicone 45 3.0 100
C4020-42AP National 20mm Pressure Release Crimp Cap, 7.5mm hole Silver/ Aluminum-PR 20mm Clear PTFE/ Translucent Blue Silicone 45 3.0 100
20-AC-CBT3 Chromacol 20mm Crimp Cap, 9mm hole Silver/ Aluminum 20mm Molded Gray/Bromobutyl/Gray PTFE 52 3.0 500
20-AC-ST3 Chromacol 20mm Crimp Cap, 9mm hole Silver/ Aluminum 20mm Blue Silicone/Natural PTFE 45 3.0 500
20-MCBC-ST3 Chromacol 20mm Composite Magnetic Crimp Cap, 8mm hole Blue Aluminum/ Tinplate 20mm Blue Silicone/Natural PTFE 45 3.0 500
20-MCBC(R)-CBT3 Chromacol 20mm Composite Magnetic Crimp Cap, 8mm hole Red Aluminum/ Tinplate 20mm Molded Gray Chlorobutyl 52 3.0 500
20-MCBC(R)-ST3 Chromacol 20mm Composite Magnetic Crimp Cap, 8mm hole Red Aluminum/ Tinplate 20mm Blue Silicone/Natural PTFE 45 3.0 500
20-MCB-ST3 Chromacol 20mm Magnetic Tinplate Crimp Cap Silver Tinplate 20mm Blue Silicone/Natural PTFE 45 3.0 500
20-MCBC(N)-ST3HT Chromacol 20mm Composite Magnetic Crimp Cap, 8mm hole Natural Aluminum/ Tinplate 20mm Red Silicone/Natural PTFE, high temperature (250°C) 45 3.1 500

18mm Screw top headspace vials, caps, septa

Our screw top headspace vials are a novelty in a crimp-neck dominated field. They provide a ready-to-use, convenient solution that does not require crimping or decrimping tools. Headspace vials, septum and caps can be purchased in various quantities separately or as convenience kits.

18mm Headspace Screw Top Vials

Catalog Brand Glass Size Base Total Vol (mL) Useable Vol (mL) Product Size
C4020-180 National Clear 22.5x46 Round 12 10 125
C4020-18 National Clear 22.5x76 Round 21 20 125
20-HSV Chromacol Clear 22.5x76 Round 21 20 125
10-HSV Chromacol Clear 22.5x46 Round 12 10 125

18mm Closures for 18mm Screw Top Headspace Vials

Catalog Brand Cap Cap Color/ Material Septum Hardness (°shore) Thickness (mm) Pack of
C4020-47 National 18mm Magnetic Screw Cap, 8mm hole Silver Steel 18mm Blue Silicone/ Natural PTFE 45 2.0 125
C4020-48 National 18mm Magnetic Screw Cap, 8mm hole, SPME Silver Steel 18mm Blue Silicone/PTFE, not prefitted 30   1.0 125
18-MSC-CBT3 Chromacol 18mm Magnetic Screw Cap, 8mm hole Silver Steel 18mm Molded Blue Chlorobutyl/ Gray PTFE 52 3.0   125
18-MSC-ST101 Chromacol 18mm Magnetic Screw Cap, 8mm hole Silver Steel 18mm Blue Silicone/PTFE, not prefitted 30 1.0 125
18-MSC-ST201 Chromacol 18mm Magnetic Screw Cap, 8mm hole Silver Steel 18mm Blue Silicone/Natural PTFE 45 2.0 125
18-MSC-ST3HT Chromacol 18mm Magnetic Screw Cap, 8mm hole Silver Steel 18mm Red Silicone/Natural PTFE, high temperature (250°C) 45 3.1 125
18-MSC Chromacol 18mm Magnetic Screw Cap, 8mm hole Silver Steel 125
18-ST101 Chromacol 18mm Blue Silicone/PTFE 30 1.0 125

Headspace Vial Convenience Kits (unassembled)

  • Includes matched quantities of vials and silver aluminum seals with pre-assembled septa

Unassembled Headspace Vial Convenience Kits

Convenience Kit Includes Vial Includes Cap Includes Septum Pack of 
C4020-139 20mm Clear Headspace Crimp Vial, Beveled Edge, Round Base (C4020-2) Silver Pressure Release Crimp Cap, 7.5mm hole (C4020-36AP) Gray PTFE/Black Butyl Rubber, Pharmafix 100
C4020-320 20mm Clear Headspace Crimp Vial, Beveled Edge, Round Base (C4020-2) Silver Pressure Release Crimp Cap, 7.5mm hole (C4020-32AP) Tan PTFE/White Silicone 1000
20-HSVST201-CP 18mm Clear Headspace 20mL Screw Vial, Round Bottom, (20-HSV) Silver Steel Screw Cap, 8mm hole (18-MSCST201) 18mm Blue Silicone/ Natural PTFE 125
20-CVCBT3-CP 20mL Clear Headspace Crimp Vial, Beveled Edge, Round Bottom, (20-CV) Silver Aluminum Crimp Cap, 8mm hole (20-AC-CBT3) 20mm Molded Blue Chlorobutyl/Gray PTFE 125
20-CVST3-CP 20mL Clear Headspace Crimp Vial, Beveled Edge, Round Bottom (20-CV) Silver Aluminum Crimp Cap, 8mm hole (20-AC-ST3) 20mm Blue Silicone/ Natural PTFE 125

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Not sure which vial is right for you?

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Electronic Vial Crimpers and Decrimpers