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.