Unknown material is placed on a sample mount to prepare it for analysis in the scanning electron microscope in the Investigative Analysis Lab at Wright-Patterson Air Force Base, Ohio, Feb. 13, 2018. This analysis helps deduce the elemental composition of a compound for use in safety investigation boards. ( Air Force photo by Michelle Gigante)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
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Keywords: aerospace, analysis, chemist, chemistry, chromatogram, fluid, fuels, hydraulic, investigative, lab, routine