Catalog Number - 95025-23-3D

The 95025-23-3D BASIK Headspace Caps are a made‑to‑order configuration designed for high‑performance headspace GC applications, combining high‑purity silicone rubber / blue PTFE septa with magnetic steel cap construction.

These caps feature a thicker 4.5 mm septa and a 5 mm center hole, providing exceptional durability, enhanced sealing surface area, and controlled needle access, making them ideal for automated systems such as CTC™ autosamplers.

✅ Recommended for validated workflows requiring thicker septa and magnetic handling

Magnetic Steel Caps – Automation Compatible

• Steel construction with magnetic properties

• Enables:

  • Robotic handling

  • Use with automated headspace samplers

• Gold finish supports:

  • Easy identification

  • Corrosion resistance

✅ Recommended for CTC™ and similar autosampler systems

High Purity Silicone/PTFE Septa – Clean & Durable

• White silicone rubber / blue PTFE

• Designed for:

  • Low extractables

  • High chemical inertness

• Supports:

  • Clean chromatographic baselines

  • Reliable analytical results

✅ Suitable for routine to sensitive GC headspace applications

Thicker Septa – Enhanced Durability & Seal Integrity

• Septa thickness: 4.5 mm (thicker than standard)

• Durometer: 55 Shore A

• Provides:

  • Increased durability

  • Strong resealing performance

  • Longer life in multi‑injection workflows

✅ Ideal for repeated injections and demanding conditions

5 mm Center Hole – Maximum Sealing Surface

• Smaller opening compared to 8 mm and 10 mm options

• Provides:

  • Increased septa contact area

  • Improved sealing reliability

✅ Ideal for applications requiring maximum seal integrity

Wide Temperature Range – Headspace Ready

• Operating range:

  • -60°C to 200°C

✅ Suitable for:

• Heated headspace GC

• VOC and semi‑volatile analysis

• Broad method conditions

Crimp Top Design – Secure Seal Integrity

• 20 mm magnetic steel crimp cap

• Provides:

  • Airtight sealing

  • Reduced evaporation

  • Reliable volatile sample containment

✅ Essential for accurate headspace GC analysis

Designed for 20 mm Headspace Vials

• Compatible with:

  • 20 mm crimp‑top headspace vials

✅ Ensures:

• Proper fit

• Consistent analytical performance

Performance Positioning – Thick Septa + Automation Option

• Compared to standard 3.0 mm septa:

  • ✅ Greater durability

  • ✅ Longer service life

• Compared to larger hole designs:

  • ✅ Improved sealing

• Compared to non‑magnetic caps:

  • ✅ Automated handling capability

✅ Ideal for:

• CTC™ autosampler workflows

• high‑throughput labs

• methods requiring extended septa life

Typical Applications

• Automated headspace GC analysis

• Pharmaceutical QA/QC

• Environmental VOC testing

• Food and flavor analysis

• High‑throughput analytical labs

Important Usage Notes

• Requires 20 mm crimping tool for proper sealing

• Magnetic caps:

  • Require compatible autosampler systems

✅ Best suited for:

• automated, high‑durability, repeat‑injection workflows

🚨Made‑to‑Order & Pricing Information

This is a custom, made‑to‑order item.

• Please contact Customer Service for formal quotation, lead time, and ordering assistance. Classification: