Catalog Number - 95025-06-1S

The 95025-06-1S MICROSOLV Headspace Caps are supplied with grey butyl rubber injection stoppers, designed to be inserted manually into aluminum crimp caps with a 10 mm center hole, providing a flexible and economical sealing solution for headspace GC applications.

This configuration is particularly useful for applications where PTFE cannot be used, offering excellent elasticity and sealing performance with traditional injection stopper designs.

Butyl Rubber Injection Stoppers – PTFE‑Free Option

• Grey butyl rubber stoppers (no PTFE)

• Provides:

  • Strong elasticity

  • Tight sealing against vial openings

• Ideal when:

  • PTFE is incompatible with the method

  • Maximum seal integrity is required

✅ Suitable for specialized workflows avoiding PTFE materials

Injection Stopper Design – Instrument Compatibility

• Shaped injection stoppers commonly used in:

  • PerkinElmer systems

  • Other injector configurations

• Designed for:

  • Reliable needle penetration

  • Consistent resealing

✅ Supports legacy and specialized injector applications

Flexible Assembly Options

• Stoppers can be:

  • Inserted into caps before crimping OR

  • Placed directly into vial openings, then capped and crimped

✅ Allows customized assembly based on workflow preference

Crimp Top Design – Secure Mechanical Seal

• 20 mm aluminum crimp cap with 10 mm center hole

• Provides:

  • Secure vial closure

  • Reliable containment of volatile samples

✅ Ensures consistent headspace GC performance

Designed for 20 mm Headspace Vials

• Compatible with:

  • 20 mm crimp‑top headspace vials

✅ Ensures:

• Proper fit

• Reliable sealing

Economical Solution – Budget Friendly

• Designed as:

  • Low‑cost alternative to laminated septa caps

• Provides:

  • Strong sealing performance at reduced cost

✅ Ideal for:

• high‑volume labs

• routine testing environments

• budget‑conscious workflows

Performance Positioning – PTFE‑Free + Cost Efficient Option

• Compared to silicone/PTFE:

  • ✅ No PTFE (required for certain applications)

• Compared to laminated butyl/PTFE:

  • ✅ Lower cost

• Compared to pre‑assembled septa caps:

  • ✅ More flexible assembly options

✅ Ideal for:

• methods requiring PTFE‑free materials

• PerkinElmer injector compatibility

• routine QC labs

Typical Applications

• Headspace GC analysis

• Pharmaceutical QA/QC

• Environmental testing

• Food and flavor analysis

• PTFE‑restricted analytical methods

Important Usage Notes

• Requires:

  • 20 mm crimping tool

• Stoppers:

  • Must be manually inserted

  • Can be placed either in cap or vial prior to crimping

• Butyl-only design:

  • Provides strong seal but less chemical inertness vs. PTFE‑lined options

✅ Best suited for:

• economical, PTFE‑free workflows