NKSSC-22-G-1 24 mm Black PP Screw Cap With 15 mm Centre Hole And PTFE/Silicone Septa (CAT#: STEM-AL-0019-ZJF)

This product is a 24 mm screw closure for laboratory storage vials. It is configured as a black polypropylene cap with a 15 mm centre hole. The closure includes beige PTFE and white silicone septa for controlled sample access. The open-top structure allows needle access through the septa during analytical workflows. The 24-414 thread format supports compatibility with suitable storage vials. The septa help maintain sample containment while allowing penetration when required. The closure is intended for workflows that require vial sealing and access through a septum. This model is applicable to TOC-related applications and purge and trap techniques.

Closure Type: Screw closure
Thread Format: 24-414
Cap Size: 24 mm
Cap Material: Polypropylene (PP)
Cap Color: Black
Top Design: Open top with 15 mm centre hole
Septa Material: Beige PTFE/white silicone
Septa Thickness: 3.0 mm
Septa Hardness: 45 Shore A
Application Method: TOC (EPA)
Technique: Purge and trap

Open-top structure for septa access
Polypropylene cap construction
PTFE/silicone septa configuration
Compatible with 24-414 storage vials
Supports needle penetration
Medium resealability after puncture
Helps maintain sample containment
Suitable for analytical vial workflows