It was determined that MIL-H-5606 aircraft hydraulic fluid, when contaminated with chlorinated cleaning solvents, can cause corrosion on hydraulic system components. This contamination in C-141 aircraft hydraulic systems was reduced by substituting P-D-680 petroleum distillate solvent for chlorinated cleaning solvents by technical order direction. A system sampling and flushing procedure during periodic depot maintenance (PDM) greatly reduced contamination. Maximum chlorine contamination limits of 55 ppm for new MIL-H-5606 hydraulic fluid and 200 ppm for the same fluid in Air Force aircraft were established. X-ray fluorescence spectroscopy as primary and gas liquid chromatography and microcoulometry as acceptable alternates were established as test methods to monitor the chlorine content of MIL-H-5606 aircraft hydraulic fluid. (Author)
Investigation of chlorine contamination in air force MIL-H-5606 hydraulic fluid in aircraft hydraulic systems
Untersuchung der Chlorverunreinigung der MIL-H-5606 Hydraulikfluessigkeit in Hydrauliksystemen der US Luftwaffe
US Government Reports ; 1-53
1982
53 Seiten
Report
English
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