 Image Number K7512-4 |
To provide the proper combination of carbon dioxide and oxygen to fresh-cut vegetable samples at various temperatures, technician Willard Douglas adjusts the valves of a multigas mixture unit.
Photo by Scott Bauer
An official website of the United States government
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.