Caps, Screw Top, with PTFE / Silicone Rubber / PTFE Septa, fitted in "knurled", polypropylene, Blue Caps. For use with 9-425mm thread, 12x32mm autosampler vials. BASIK Brand. 100/PK. Special Order Item.
Additional Information:
These 9-425 Screw Caps are designed for use with standard 12 x 32 mm autosampler vials and feature PTFE / Silicone Rubber / PTFE septa fitted into blue knurled polypropylene caps. This Special Order Item is intended for laboratories using specific instrument configurations or methods that benefit from enhanced septa performance.
9502S-E-20C-B utilizes a PTFE / Silicone Rubber / PTFE septa construction originally developed for compatibility with older instrument platforms, including Agilent 1050 systems. The dual PTFE-facing design can provide additional needle cleaning during injection by creating a wiping effect as the needle passes through the septa.
The layered septa construction also offers a modest improvement in resealing performance compared to standard Silicone Rubber / PTFE septa. Combined with the knurled polypropylene cap design, these closures provide reliable sealing and handling for specialized autosampler applications.
Key Benefits
PTFE / Silicone Rubber / PTFE septa design supports specialized applications
May provide additional needle wiping during injections
Designed for compatibility with certain older autosampler systems
Improved resealing characteristics compared to standard Silicone Rubber / PTFE septa
Compatible with standard 9-425 threaded autosampler vials
Knurled cap design improves grip and handling
Suitable for specialized analytical workflows
Typical Applications
HPLC analysis
UHPLC analysis
LC-MS sample preparation
Legacy autosampler systems
Agilent 1050 instrument applications
Pharmaceutical testing
Environmental analysis
Quality control laboratories
Specifications
Product Type: Screw Caps
Closure Style: Screw Top
Thread Size: 9-425
Cap Material: Polypropylene
Cap Color: Blue
Cap Style: Knurled
Septa Material: PTFE / Silicone Rubber / PTFE
Vial Compatibility: 12 x 32 mm Autosampler Vials
Quantity: 100 Caps per Pack
Brand: BASIK
Item Status: Special Order Item
Compatibility
Fits standard 9-425 threaded autosampler vials
Designed for 12 x 32 mm vial configurations
Compatible with many autosampler platforms
Developed for applications including certain legacy systems such as Agilent 1050 instruments
Performance and Design Notes
Dual PTFE-facing layers may help clean injection needles during sampling
Silicone core provides sealing and puncture recovery
Offers improved resealing compared to standard Silicone Rubber / PTFE septa
Supports specialized analytical methods requiring enhanced septa performance
Important Notes
Designed for specialized instrument and method requirements
Fits 9-425 threaded autosampler vials
Packaged 100 caps per pack
Contact Customer Service for availability and lead-time information