Catalog Number - 95025-01-1S

The 95025-01-1S MICROSOLV Headspace Caps are designed for routine headspace GC applications, featuring dark grey butyl rubber septa that provide reliable sealing and chemical compatibility without PTFE.

These caps are fitted in 20 mm aluminum crimp closures with a 10 mm center hole, allowing consistent autosampler needle access while maintaining secure containment of volatile samples.

Butyl Rubber Septa – PTFE‑Free Solution

• Dark grey butyl rubber septa (no PTFE layer)

• Eliminates:

  • PTFE extractables

  • PTFE-related interference

✅ Ideal when:

• PTFE is an analyte

• PTFE must be avoided in analysis

Reliable Sealing for Routine Analysis

• Septa hardness: 55° Shore A

• Thickness: 3.0 mm

• Provides:

  • Good sealing performance

  • Suitable durability for standard injections

✅ Designed for non‑critical and routine workflows

Temperature Compatibility – Headspace Ready

• Operating range:

  • -40°C to 120°C

✅ Suitable for moderate temperature headspace applications

10 mm Center Hole – Autosampler Access

• Open center design allows:

  • Easy needle penetration

  • Consistent injection performance

✅ Supports automated headspace systems

Crimp Top Design – Secure Seal Integrity

• 20 mm aluminum crimp cap

• Provides:

  • Airtight seal

  • Reduced evaporation

  • Reliable containment

✅ Essential for volatile sample analysis

Designed for 20 mm Headspace Vials

• Compatible with:

  • 20 mm crimp‑top headspace vials

• Ensures:

  • Proper fit

  • Consistent performance

✅ Enables accurate and reproducible results

Cost‑Effective Solution – Budget Friendly

• Economical alternative to PTFE‑lined septa

• Ideal for:

  • High‑volume labs

  • Routine testing environments

✅ Reduces consumables cost without sacrificing basic performance

Typical Applications

• Routine headspace GC analysis

• Environmental and industrial testing

• QA/QC laboratories

• Applications where PTFE must be avoided

• High‑throughput screening workflows

Important Usage Notes

• Requires 20 mm crimping tool for proper sealing

• Not recommended for:

  • Ultra‑trace analysis requiring PTFE barrier

• Best suited for:

  • Non‑critical analytical applications