Catalog Number - 95025-07

The 95025-07 MICROSOLV Headspace Septa are a made‑to‑order, high‑purity septa solution featuring white silicone rubber with ultra‑clean beige PTFE, providing excellent chemical inertness, low extractables, and consistent analytical performance.

Designed for use with 20 mm crimp‑top headspace caps (sold separately), these septa deliver balanced sealing performance and ease of penetration, making them ideal for routine to sensitive GC headspace applications.

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 workflows requiring high‑purity silicone/PTFE septa

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

Silicone/PTFE Construction – High Purity Performance

• White silicone rubber / beige PTFE

• Provides:

  • High chemical inertness

  • Low bleed and extractables

  • Clean chromatographic baselines

✅ Ideal for routine to moderately sensitive 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 throughput

Wide Temperature Range – Headspace Ready

• Operating range:

  • -60°C to 200°C

✅ Suitable for:

• Heated headspace GC

• VOC and semi‑volatile compounds

• Broad analytical method conditions

Septa Characteristics – Reliable Performance

• Balanced construction provides:

  • Consistent resealing after puncture

  • Stable multi‑injection performance

  • Good mechanical durability

✅ Suitable for routine autosampler operations

Bulk Packaging – High Throughput Efficiency

• 1000 septa per case

• Supplied in:

  • Polyethylene bags

• Designed for:

  • High‑volume laboratories

  • Routine production environments

✅ Improves inventory efficiency and cost control

Performance Positioning – Most Popular General‑Purpose Option

• Compared to fully laminated PTFE (both sides):

  • ✅ More economical

• Compared to butyl/PTFE:

  • ✅ Higher chemical inertness

• Compared to harder septa:

  • ✅ Easier penetration

✅ Ideal for:

• routine QC laboratories

• general headspace GC workflows

• balanced purity and cost applications

Typical Applications

• Headspace GC analysis

• Pharmaceutical QA/QC

• Environmental VOC testing

• Food and flavor analysis

• Routine laboratory workflows

Important Usage Notes

• Designed for:

  • 20 mm crimp caps (sold separately)

• Ensure:

  • Proper insertion before crimping

✅ Best suited for:

• routine, high‑purity analytical 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: