Catalog Number - 95025-09-1S

The 95025-09-1S BASIK Headspace Caps are a made‑to‑order solution engineered for ultra‑sensitive headspace GC applications, featuring translucent silicone rubber with natural PTFE septa manufactured to deliver extremely low extractables and ultra‑low bleed performance.

These caps are fitted in 20 mm aluminum crimp closures with a 10 mm center hole, allowing consistent autosampler needle access while maintaining a secure, airtight seal for volatile sample integrity.

✅ Recommended for validated, high‑sensitivity analytical methods

Crimp Caps with High Purity Silicone/PTFE Septa

High Purity Silicone/PTFE Septa – Ultra Clean Performance

• Translucent silicone rubber / natural PTFE

• No added colorants or dyes

• Proprietary manufacturing process results in:

  • Ultra‑low bleed

  • Very low extractables

  • High chemical purity

✅ Ideal for trace‑level and contamination‑sensitive analyses

Thicker PTFE Liner – Enhanced Barrier Protection

• 5.0 mil (0.127 mm) skived PTFE liner

• Improves:

  • Chemical resistance

  • Barrier performance

  • Sample protection

✅ Helps maintain sample integrity in demanding conditions

Soft Septa – Easier Needle Penetration

• Durometer: 45 Shore A (soft formulation)

• Thickness: 3.05 mm (± 0.01 mm)

• Provides:

  • Reduced needle force

  • Less septa damage

  • Smooth autosampler operation

✅ Improves injection reproducibility and instrument reliability

Wide Temperature Range – Headspace Ready

• Operating range:

  • -60°C to 200°C

✅ Suitable for:

• Heated headspace GC

• Volatile and semi‑volatile compounds

• Broad analytical method requirements

10 mm Center Hole – Optimized for Autosamplers

• Open center design allows:

  • Consistent needle entry

  • Reduced septa stress

✅ Supports efficient high‑throughput workflows

Crimp Top Design – Secure Seal Integrity

• 20 mm aluminum crimp cap

• Provides:

  • Airtight sealing

  • Reduced evaporation

  • Reliable volatile sample containment

✅ Critical for accurate headspace GC analysis

Designed for 20 mm Headspace Vials

• Compatible with:

  • 20 mm crimp‑top headspace vials

✅ Ensures:

• Proper fit

• Reliable analytical performance

Positioned as Ultra‑Clean, High‑Sensitivity Option

• Compared to standard silicone/PTFE:

  • ✅ Lower extractables

  • ✅ Cleaner baseline

• Compared to economy options:

  • ✅ Higher purity

  • ✅ Better analytical confidence

✅ Ideal for regulated, pharmaceutical, and trace analysis labs

Typical Applications

• High‑sensitivity headspace GC analysis

• Pharmaceutical QA/QC and stability testing

• Environmental VOC analysis

• Food and flavor testing

• Trace‑level contaminant detection

Important Usage Notes

• Requires 20 mm crimping tool for proper sealing

• Confirm specifications before ordering

• Best suited for:

  • Ultra‑clean analytical requirements

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: