Even though the material may not have a shelf-life, compressed gas cylinders onsite for a few years should be a concern. “Most” cylinders need to be retested every 5 years. We date cylinders when they arrive and try to make sure they are used or returned yearly.
Has anyone ever heard of a limited shelf-life for cylinders of nitrogen dioxide or nitric oxide?
Both are toxic oxidizers..
Christopher E. Kohler
Laboratory Safety Manager
University Environmental Health and Safety
1514 E Third Street
Bloomington, IN 47405
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