Catalog Number - 9502S-E-15B

These BASIK™ 9502S-E-15B screw caps are the most economical closure option for routine autosampler vial applications, providing dependable sealing performance while helping laboratories control consumable costs. Designed for use with standard 12 x 32 mm autosampler vials featuring a 9-425 thread finish, these caps are well suited for high-throughput analytical laboratories performing routine testing and sample analysis.

Each cap is fitted with a white silicone rubber septum faced with natural (undyed) PTFE. The natural PTFE layer provides excellent chemical inertness and solvent resistance comparable to red PTFE materials without the use of color additives. The silicone backing delivers reliable resealing characteristics and consistent needle penetration performance during repeated autosampler injections.

The blue polypropylene cap features a knurled exterior surface for improved handling and secure installation. These caps are appropriate for routine HPLC and GC applications where dependable sealing performance is required but certified low-bleed, ultra-clean, or MS-validated components are not necessary. Supplied in convenient 100-piece packs, they represent an economical solution for daily laboratory operations.

Key Benefits

• Economical cap option for routine laboratory use

• White silicone rubber / natural PTFE septa

• Excellent chemical resistance and inertness

• Knurled cap design for improved handling

• Reliable autosampler needle penetration

• Consistent vial sealing performance

• Compatible with standard 9-425 threaded vials

• Ideal for routine HPLC and GC applications

Typical Applications

• HPLC analysis

• GC analysis

• Routine quality control testing

• Pharmaceutical laboratories

• Environmental testing

• Food and beverage analysis

• Academic research laboratories

• High-throughput analytical workflows

Specifications

• Product Type: Screw Cap with Septum

• Cap Material: Polypropylene

• Cap Color: Blue

• Septum Material: White Silicone Rubber / Natural PTFE

• Thread Size: 9-425

• Compatible Vial Size: 12 x 32 mm Autosampler Vials

• Closure Style: Screw Top

• Cap Style: Knurled

• Quantity: 100 Caps per Pack

• Brand: BASIK

Resources

• Available in larger case quantities for additional cost savings

Important Notes

• Economical option for routine laboratory testing

• Natural PTFE offers excellent solvent resistance

• Suitable for HPLC and GC applications

• Compatible with standard 9-425 autosampler vials

• Reliable resealing performance for autosamplers

• Designed for routine analytical workflows

• Not intended for applications requiring certified low-bleed or MS-grade components

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