ER00430
10 ml Clear Precision Screw Headspace Vial, Round Bottom, 22.5 × 46 mm, 100/pk
10 ml, 18 mm, Clear, 22.5 × 46 mm
Lead time 3-4 weeks, ships from the Czech Republic (EU)
€27.84 per pack of 100 €0.28 per vial
18 mm screw headspace vials (ND18)
10 ml (22.5 × 46 mm) and 20 ml (22.5 × 75.5 mm) precision screw-thread headspace vials with round bottoms, in clear and amber glass.
They are used for headspace GC and GC-MS with 18 mm magnetic screw caps, which close without a crimper; packs of 100. Items not in stock have a lead time of 3 to 4 weeks.
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Products
ER00431
10 ml Amber Precision Screw Headspace Vial, Round Bottom, 22.5 × 46 mm, 100/pk
10 ml, 18 mm, Amber, 22.5 × 46 mm
Lead time 3-4 weeks, ships from the Czech Republic (EU)
€27.84 per pack of 100 €0.28 per vial
ER00432
20 ml Clear Precision Screw Headspace Vial, Round Bottom, 22.5 × 75.5 mm, 100/pk
20 ml, 18 mm, Clear, 22.5 × 75.5 mm
Lead time 3-4 weeks, ships from the Czech Republic (EU)
€31.32 per pack of 100 €0.31 per vial
ER00433
20 ml Amber Precision Screw Headspace Vial, Round Bottom, 22.5 × 75.5 mm, 100/pk
20 ml, 18 mm, Amber, 22.5 × 75.5 mm
Lead time 3-4 weeks, ships from the Czech Republic (EU)
€31.32 per pack of 100 €0.31 per vial
ER00434
10 ml Clear Precision Screw Headspace Vial, Round Bottom, 22.5 × 46 mm, USP Type I, 100/pk
10 ml, 18 mm, Clear, 22.5 × 46 mm
Lead time 3-4 weeks, ships from the Czech Republic (EU)
€34.80 per pack of 100 €0.35 per vial
ER00435
10 ml Amber Precision Screw Headspace Vial, Round Bottom, 22.5 × 46 mm, USP Type I, 100/pk
10 ml, 18 mm, Amber, 22.5 × 46 mm
Lead time 3-4 weeks, ships from the Czech Republic (EU)
€48.72 per pack of 100 €0.49 per vial
ER00436
20 ml Clear Precision Screw Headspace Vial, Round Bottom, 22.5 × 75.5 mm, USP Type I, 100/pk
20 ml, 18 mm, Clear, 22.5 × 75.5 mm
Lead time 3-4 weeks, ships from the Czech Republic (EU)
€48.72 per pack of 100 €0.49 per vial
ER00437
20 ml Amber Precision Screw Headspace Vial, Round Bottom, 22.5 × 75.5 mm, USP Type I, 100/pk
20 ml, 18 mm, Amber, 22.5 × 75.5 mm
Lead time 3-4 weeks, ships from the Czech Republic (EU)
€69.60 per pack of 100 €0.70 per vial
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Start from your autosampler: it decides the vial size and neck. Then pick the glass colour and the cap.
Step 1: Neck size and closure
| Neck | Closure | Typical use |
|---|---|---|
| 9 mm short thread (9-425) | Screw cap with septum | The most common HPLC format; wide opening, easy to fill |
| 8 mm (8-425) | Screw cap with septum | Older and some specific autosamplers |
| 10 mm (10-425) | Screw cap with septum | Specific autosampler models |
| 11 mm crimp or snap | Aluminium crimp cap or snap cap | GC and volatile samples (crimp seals tightest) |
| 18 mm and 20 mm | Magnetic screw or crimp cap | Headspace GC |
Standard 2 ml vials measure 11.6 × 32 mm (often written 12 × 32 mm). Check the vial format in your autosampler manual; a free sample lets you test the fit in your rack.
Step 2: Clear or amber glass
Use amber glass for light-sensitive compounds. Use clear glass for everything else, so you can see the fill level and any particles.
Step 3: Caps and septa
PTFE/silicone septa suit most HPLC and GC work and reseal for repeat injections. Pre-slit septa reduce needle wear and stop a vacuum forming in the vial. Order caps and vials together: on EROHE, equal packs of 9 mm vials and caps get 5% off both.
Step 4: Small sample volumes
For volumes under 1 ml, use a glass insert in a standard vial, or a vial with a built-in conical insert, so the needle can still reach the sample.
Questions buyers ask
Screw or crimp headspace vials?
Screw headspace vials close by hand with an 18 mm magnetic screw cap, so no crimper is needed. Crimp vials need a crimper but are the traditional format; use the one your sampler and method specify.
Which cap fits an 18 mm screw headspace vial?
The 18 mm magnetic precision screw caps (ND18), with PTFE/silicone septa.
Why are the caps magnetic?
Many headspace autosamplers move vials with a magnet that picks up the cap.