Catalog Number - 9502S-E-15B-M

These BASIK™ screw caps are an economical solution for autosampler vial sealing, providing dependable performance for routine and high-throughput laboratory workflows where controlling consumable costs is important. Designed for use with standard 12 x 32 mm autosampler vials featuring a 9-425 thread finish, they offer reliable sealing, consistent autosampler operation, and excellent value for laboratories processing large numbers of samples.

9502S-E-15B-M screw caps are fitted with white silicone rubber septa faced with natural (undyed) PTFE and supplied in a cost-saving 1,000-count case. The natural PTFE layer provides excellent chemical inertness and solvent resistance comparable to red PTFE materials without added pigments, while the silicone backing delivers reliable resealing and consistent needle penetration performance during repeated autosampler injections.

The blue polypropylene caps feature a knurled exterior surface for secure handling and installation. These caps are well suited for routine HPLC and GC applications where dependable performance is required but certified low-bleed, ultra-clean, or MS-grade components are not necessary. The bulk case format is ideal for laboratories seeking maximum value, reduced ordering frequency, and improved inventory management.

Key Benefits

• Economical bulk-case packaging for high-volume laboratories

• White silicone rubber / natural PTFE septa

• Excellent chemical resistance and inertness

• Knurled cap design for improved handling

• Reliable autosampler needle penetration

• Consistent sealing and resealing 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: 1,000 Caps per Case

• Brand: BASIK

Resources

• Smaller pack quantities are also available

Important Notes

• Economical bulk-pack option for routine laboratory testing

• Natural PTFE provides excellent solvent resistance

• Suitable for HPLC and GC applications

• Compatible with standard 9-425 autosampler vials

• Reliable resealing performance for autosamplers

• Designed for high-throughput analytical workflows

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

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