Catalog Number - 95025-04

The 95025-04 MICROSOLV Headspace Septa are a made‑to‑order, high‑purity septa solution featuring blue silicone rubber completely laminated with ultra‑clean PTFE on both sides, providing maximum inertness, minimal extractables, and consistent analytical performance.

Designed for use with 20 mm crimp‑top headspace caps (sold separately), these septa deliver excellent sealing performance and compatibility with sensitive GC headspace methods.

Custom Order Item – Critical Notice

• 🚨 Made‑to‑order product

• Non‑returnable and non‑cancelable once ordered

• May require:

  • Lead time

  • Availability confirmation

✅ Recommended for validated, high‑purity analytical workflows

Designed for 20 mm Crimp Caps

• Diameter: 20 mm septa

• Compatible with:

  • 20 mm aluminum or steel crimp caps (sold separately)

✅ Ensures:

• Proper fit

• Reliable and reproducible sealing

Fully Laminated Silicone/PTFE – Maximum Inertness

• Blue silicone rubber with PTFE laminated on both sides

• Provides:

  • Superior chemical resistance

  • Ultra‑low extractables

  • Minimal analyte interaction

✅ Ideal for:

• trace‑level detection

• high‑sensitivity GC headspace analyses

Soft Septa – Easy Needle Penetration

• Durometer: 45 Shore A (soft formulation)

• Septa thickness: 3.0 mm

• Provides:

  • Reduced needle resistance

  • Smooth penetration

  • Reduced autosampler needle wear

✅ Improves injection consistency and instrument longevity

Wide Temperature Range – Headspace Ready

• Operating range:

  • -60°C to 200°C

✅ Suitable for:

• Heated headspace GC

• VOC and semi‑volatile compounds

• Broad analytical methods

Septa Characteristics – Reliable Performance

• Fully laminated design ensures:

  • Consistent barrier protection on both sides

  • Excellent resealing after puncture

  • Stable multi‑injection performance

✅ Ideal for repeat autosampler injections and sensitive workflows

Bulk Packaging – High Throughput Efficiency

• 1000 septa per case

• Supplied in:

  • Polyethylene bags

• Designed for:

  • High‑volume laboratories

  • Routine and production environments

✅ Improves inventory efficiency and cost control

Performance Positioning – Highest Purity Silicone/PTFE Option

• Compared to butyl/PTFE:

  • ✅ Lower extractables

  • ✅ Greater inertness

• Compared to Pharma‑Fix™:

  • ✅ PTFE protection on both sides

• Compared to non‑laminated silicone:

  • ✅ Reduced sample interaction

✅ Ideal for:

• trace analysis

• regulated environments

• high‑sensitivity GC methods

Typical Applications

• Headspace GC analysis

• Pharmaceutical QA/QC and validation

• Environmental VOC testing

• Food and flavor analysis

• Trace‑level contaminant detection

Important Usage Notes

• Designed for:

  • 20 mm crimp caps (sold separately)

• Ensure:

  • Proper insertion before crimping

✅ Best suited for:

• high‑purity, high‑sensitivity 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: