Staff Sgt. Sarah Sarten holds a sample from a freshly filled tank if liquid oxygen at the 379th Air Expeditionary Wing in Southwest Asia, Oct. 1, 2013. Once the sample is collected, cryogenics technicians must perform an odor test to ensure the liquid oxygen is good for use. Sarten is a 379th Expeditionary Logistics Readiness Squadron cryogenics supervisor deployed from Scott Air Force Base, Ill., and a Concord, , native. Senior Airman Bahja J. Jones)

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Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
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