Materials Engineer, Materials Science Laboratory, National Aeronautics and Space Administration, Kennedy Space Center, FL
Pages: 10 Published: Jan 1993
Most aerospace cleaning specifications require particulate analysis as part of the cleanliness verification process. Trichlorotrifluoroethane, CFC-113, is presently the test solvent of choice for cleanliness verification.
It has been proposed to use water to replace CFC-113 as the test solvent for cleanliness verification; however it has been speculated that the differences in the physical properties between the two fluids will result in significantly different results in the particle analysis.
A comparison of deionized water versus CFC-113 has been conducted for several types of sampling of components. This paper presents a description of the tests, the test results, observations, and conclusions regarding the subject.
particle analysis, precision cleaning, aqueous cleaning, particulate, trichlorotrifluoroethane
Paper ID: STP15950S