Catalog Number - 95025-08-5R

The 95025-08-5R BASIK Headspace Caps are a made‑to‑order, high‑purity configuration that combines ultra‑low bleed silicone/PTFE septa with magnetic bimetallic cap construction, offering excellent chemical inertness, easier crimping than steel caps, and full compatibility with automated headspace systems.

These caps are fitted in 20 mm red bimetallic magnetic closures with an 8 mm center hole, providing increased sealing surface area, smooth autosampler needle access, and clear visual identification for workflow control.

✅ Recommended for validated workflows requiring magnetic handling with high‑purity performance

Bimetallic Magnetic Caps – Automation + Easy Crimping

• Bimetallic construction provides:

  • Magnetic compatibility for autosampler systems

  • Easier crimping vs. full steel caps

• Red cap finish supports:

  • Visual identification

  • Sample grouping or workflow differentiation

✅ Ideal for automated GC headspace systems and high‑throughput labs

High Purity Silicone/PTFE Septa – Ultra Low Bleed Performance

• White silicone rubber / white PTFE

• Proprietary processing provides:

  • Ultra‑low bleed

  • Low extractables

  • High chemical purity

✅ Excellent for:

• trace‑level detection

• sensitive GC headspace analyses

• regulated environments

Soft Septa – Easier Needle Penetration

• Durometer: 45 Shore A (soft formulation)

• Septa thickness: 3.0 mm

• Provides:

  • Reduced needle force

  • Smooth penetration

  • Reduced instrument wear

✅ Improves autosampler reliability and reproducibility

8 mm Center Hole – Enhanced Seal Integrity

• Smaller opening provides:

  • Increased septa contact area

  • Improved sealing reliability

• Maintains:

  • Consistent autosampler access

✅ Ideal for maximum sealing performance with automated systems

Wide Temperature Range – Headspace Ready

• Operating range:

  • -60°C to 200°C

✅ Suitable for:

• Heated headspace GC

• VOC and semi‑volatile analysis

• Broad analytical methods

Crimp Top Design – Secure Seal Integrity

• 20 mm bimetallic magnetic crimp cap

• Provides:

  • Airtight sealing

  • Reduced evaporation

  • Reliable containment of volatile samples

✅ Essential for accurate and reproducible headspace GC results

Designed for 20 mm Headspace Vials

• Compatible with:

  • 20 mm crimp‑top headspace vials

✅ Ensures:

• Proper fit

• Consistent analytical performance

Performance Positioning – Automation + Ultra‑Low Bleed Option

• Compared to aluminum caps:

  • ✅ Magnetic handling capability

• Compared to steel caps:

  • ✅ Easier crimping

• Compared to standard silicone/PTFE:

  • ✅ Ultra‑low bleed purity

✅ Ideal for:

• automated GC headspace workflows

• high‑throughput laboratories

• high‑sensitivity analytical methods

Typical Applications

• Automated headspace GC analysis

• Pharmaceutical QA/QC and validation

• Environmental VOC testing

• Food and flavor analysis

• Trace‑level contaminant detection

Important Usage Notes

• Requires 20 mm crimping tool for proper sealing

• Magnetic caps:

  • Require compatible autosampler systems

✅ Best suited for:

• automated, high‑purity, high‑throughput 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: