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    Experience and Initiatives in Replacing Ozone Depleting Chemicals for Precision Cleaning at the U.S. Air Force's Aerospace Guidance and Metrology Center

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    The Aerospace Guidance and Metrology Center has historically been a major user of Ozone Depleting Chemicals (ODCs) for precision cleaning operations. The Center has developed aqueous processes to the point where they are being implemented as alternatives for the vast majority of its precision cleaning requirements. Included in the materials and assemblies being cleaned with aqueous processes are beryllium and precision instrument bearings. The Center has also developed a method to quantitatively compare the cleaning effectiveness of one process to another. The method involves the use of stable isotopes and has proven to be effective for measuring organic contaminant removal in parts and assemblies with complicated geometries such as hidden cavities, dead end screw holes, small diameter fill tubes, etc.


    aqueous cleaning, stable isotope, cleaning effectiveness, cleaning comparison, beryllium cleaning, precision cleaning, Ozone Depleting Chemicals

    Author Information:

    Hunt, DE
    Chief Scientist, AGMC/CN, Aerospace Guidance and Metrology Center, Newark Air Force Base, Ohio

    Milholen, CV
    Project Engineer, AGMC/MAEL, Aerospace Guidance and Metrology Center, Maintenance Engineering Division, NAFB, Ohio

    Committee/Subcommittee: G04.02

    DOI: 10.1520/STP15947S