Aluminum

Silicone septa, also known as a silicone rubber septum or stopper, is a sealing component used in laboratory settings, particularly in chromatography and sample storage applications. It is a circular disc-shaped piece made of silicone rubber that is placed within the cap of a vial or container to create a secure and leak-proof seal.
Silicone septa are commonly used in conjunction with screw caps or crimp caps to seal vials used in gas chromatography (GC) and other analytical techniques. They are typically placed between the cap and the vial opening, and when the cap is tightened or crimped, the septa forms a barrier that prevents leakage or contamination of the sample.

10ml 20ml Headspace GC vials are a type of sample vial used in gas chromatography (GC) analysis.
They are specifically designed for the analysis of volatile and semi-volatile compounds present in a sample.
Headspace analysis involves the extraction of volatile compounds from a solid or liquid sample into the gas phase for injection into a GC instrument.
20mm aluminum caps and septa are commonly used in chromatography applications, including gas chromatography (GC) and high-performance liquid chromatography (HPLC). They are used to seal sample vials and ensure a gas-tight or liquid-tight seal.

20mm Crimp-top Aluminum Rubber Septa typically refers to a type of closure system used in laboratory settings. It consists of an aluminum cap combined with a rubber septa.
The aluminum cap is designed to seal the opening of a container, such as a vial or bottle, and is typically made of aluminum or aluminum alloy.
It provides a secure closure to prevent leakage, contamination, or evaporation of the contents.
The aluminum cap ensures a secure fit, while the rubber septa provide a barrier against leaks, contamination, and sample evaporation.

2ml sample vial s equipped with a silver aluminum cap that has an ND11 (Narrow Diameter 11mm) size that cap is designed to fit the vial securely and provide a seal to prevent leakage or contamination.
The silver aluminum caps are designed to provide a secure closure for the vial, ensuring that the sample inside remains sealed and protected from contamination or leakage.
Overall, the combination of a 2ml sample vial with silver aluminum caps provides a reliable and convenient solution for storing and preserving small liquid samples in a laboratory or industrial environment.