Catalog Number - 95025-09

The 95025-09 BASIK Headspace Septa are a made‑to‑order, ultra‑high purity septa solution featuring translucent silicone rubber and natural (unpigmented) PTFE, manufactured using a proprietary ultra‑clean process to deliver exceptionally low bleed and extractables.

Designed for use with 20 mm crimp‑top headspace caps (sold separately), these septa are ideal for trace‑level GC headspace analysis, where baseline cleanliness and analytical precision are critical.

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 methods requiring the highest purity 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

• Consistent, reliable sealing

Ultra‑Clean Silicone/PTFE – No Color Additives

• Translucent silicone rubber / natural PTFE (no pigments)

• Manufactured using a proprietary ultra‑clean process

• Provides:

  • Ultra‑low bleed

  • Minimal extractables

  • Reduced risk of contamination from dyes

✅ Ideal for:

• trace‑level detection

• regulated environments

• methods sensitive to background interference

Ultra Low Bleed Performance – Maximum Sensitivity

• Engineered for:

  • Extremely clean chromatographic baselines

  • Minimal signal interference

• Outperforms:

  • Standard silicone/PTFE

  • Colored PTFE laminates in ultra‑trace applications

✅ Critical for:

• GC‑MS workflows

• trace VOC analysis

• pharmaceutical validation methods

Soft Septa – Easy Needle Penetration

• Durometer: 45 Shore A (soft formulation)

• Septa thickness: 3.0 mm

• Provides:

  • Reduced penetration force

  • Smooth needle entry

  • Reduced autosampler wear

✅ Improves:

• injection reproducibility

• instrument longevity

Wide Temperature Range – Headspace Ready

• Operating range:

  • -60°C to 200°C

✅ Suitable for:

• Heated headspace GC

• VOC and semi‑volatile compounds

• High‑temperature analytical workflows

Septa Characteristics – Reliable & Repeatable

• Provides:

  • Excellent resealing after puncture

  • Stable multi‑injection performance

  • Consistent barrier protection

✅ Ideal for automated high‑precision workflows

Bulk Packaging – High Throughput Efficiency

• 1000 septa per case

• Supplied in:

  • Polyethylene bags

• Designed for:

  • High‑volume laboratories

  • Routine and regulated production environments

✅ Improves:

• inventory control

• operational efficiency

Performance Positioning – Highest Purity, No‑Color Option

• Compared to standard silicone/PTFE:

  • ✅ Lower bleed

  • ✅ Cleaner baselines

• Compared to white PTFE versions:

  • ✅ No pigment contribution

• Compared to butyl/PTFE:

  • ✅ Higher chemical inertness

✅ Ideal for:

• ultra‑trace GC analysis

• pharmaceutical QA/QC

• environmental VOC testing

• regulated laboratories requiring maximum cleanliness

Typical Applications

• Trace‑level headspace GC / GC‑MS

• Pharmaceutical QA/QC and validation

• Environmental VOC analysis

• Food and flavor testing

• Research and regulatory laboratories

Important Usage Notes

• Designed for:

  • 20 mm crimp caps (sold separately)

• Ensure:

  • Proper septa insertion before crimping

✅ Best suited for:

• highest sensitivity and lowest background 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: