NKSSC-22-G-1-C 24 mm White PP Screw Cap With Closed Top And PTFE/Silicone Septa (CAT#: STEM-AL-0018-ZJF)

This product is a 24 mm screw closure for laboratory storage vials. It is configured as a white polypropylene cap with a closed-top design. The closure includes beige PTFE and white silicone septa for sample containment. The closed top helps reduce evaporation and protects samples from external contamination during storage. The 24-414 thread format supports use with compatible storage vials. The septa structure provides a sealing interface for analytical sample workflows. The material combination is suitable for applications requiring chemical-resistant vial closure components. This model is applicable to TOC-related workflows and purge and trap techniques.

Closure Type: Screw closure
Thread Format: 24-414
Cap Size: 24 mm
Cap Material: Polypropylene (PP)
Cap Color: White
Top Design: Closed top
Septa Material: Beige PTFE/white silicone
Septa Thickness: 3.0 mm
Septa Hardness: 45 Shore A
Application Method: TOC (EPA)
Technique: Purge and trap

Closed-top structure for sealed storage
Polypropylene cap construction
PTFE/silicone septa configuration
Compatible with 24-414 storage vials
Helps reduce evaporation
Helps limit sample contamination
Supports analytical sample containment
Suitable for purge and trap workflows