Airmen 1st Class Angelito Kamatoy and Nathanael Markley, 36th Logistics Readiness Squadron cryogenic production technicians, pull a daily sample from a tank April 8, 2015, at Andersen Air Force Base, Guam. Every 24 hours, a cryogenics airman pulls a sample to ensure liquid and gaseous nitrogen are produced are percent pure. Senior Airman Katrina M. Brisbin

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Photo credit: © PJF Military Collection / Alamy / Afripics
License: Licensed
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Keywords: 36th, air, airforce, andersen, force, fuel, guam, logistics, military, pol, readiness, squadron, states, united, usa, wing