An official website of the United States government
Here’s how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Please refer to the owner's manual for further information.
Usage Information
Access Information
Refrigerators and freezers are available in the laboratories for storing temperature sensitive samples shortly before, during and shortly after user experiments.