Catalog Number - 95020-25S-T

The 95020-25S-T MICROSOLV Headspace Caps are a made‑to‑order screw‑top configuration engineered for headspace GC applications using 18 mm precision thread (ND18) vials, combining silicone rubber / aluminum foil septa with magnetic steel caps for secure sealing and automated handling.

Designed with an 8 mm center hole and ND18 threading, these caps provide consistent needle access, strong mechanical sealing, and compatibility with automated headspace systems, particularly PerkinElmer TurboMatrix® platforms.

✅ Recommended for validated methods requiring screw‑top magnetic caps

Screw Top Design – ND18 Precision Thread

• ND18 (18 mm precision thread)

• Designed for:

  • Screw‑top headspace vials

  • Quick sealing without crimp tools

• Provides:

  • Secure closure

  • Convenient handling

✅ Ideal for labs preferring screw‑top workflows over crimping

Magnetic Steel Caps – Automation Ready

• Steel caps with magnetic properties

• Enables:

  • Robotic handling

  • Autosampler compatibility

• Silver finish:

  • Clean visual appearance

  • Corrosion resistance

✅ Compatible with:

• PerkinElmer TurboMatrix® 16, 40, and 110 systems

• Other magnetic‑cap autosamplers

Silicone Rubber / Aluminum Foil Septa – High Temperature Durability

• Silicone rubber with aluminum foil barrier

• Provides:

  • Strong thermal resistance

  • Reliable barrier protection

  • Mechanical durability

✅ Ideal for headspace GC methods requiring heat tolerance

Septa Characteristics – Balanced Strength & Penetration

• Thickness: 1.3 mm

• Durometer: 50 Shore A

• Provides:

  • Controlled needle penetration

  • Adequate resealing

  • Reduced deformation

✅ Suitable for routine injection workflows

8 mm Center Hole – Autosampler Compatibility

• Provides:

  • Smooth needle entry

  • Consistent sampling

• Maintains:

  • Adequate sealing area

✅ Ideal for automated headspace injections

Temperature Compatibility – Headspace Ready

• Suitable for:

  • Elevated temperature headspace GC

• Silicone/foil design supports:

  • Thermal durability

  • Stable performance

✅ Designed for standard to high‑temperature analytical methods

Designed for 18 mm Thread Headspace Vials

• Compatible with:

  • ND18 screw‑top headspace vials

✅ Ensures:

• Proper fit

• Reliable analytical results

Performance Positioning – Screw Top + Automation + High Temp Option

• Compared to crimp caps:

  • ✅ Faster, tool‑free sealing

• Compared to PTFE systems:

  • ✅ Better high‑temperature durability

• Compared to non‑magnetic screw caps:

  • ✅ Autosampler compatibility

✅ Ideal for:

• PerkinElmer workflows

• automated screw‑top systems

• high‑temperature headspace applications

Typical Applications

• Headspace GC analysis

• Pharmaceutical QA/QC

• Environmental VOC testing

• Food and flavor analysis

• Automated headspace workflows (PerkinElmer systems)

Important Usage Notes

• Designed for ND18 screw‑top vials (not crimp top)

• Magnetic caps:

  • Require compatible autosampler systems

• No crimping tool required:

  • Screw cap application

✅ Best suited for:

• automated, screw‑top, high‑temperature 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: