STP1181: Aqueous Nonvolatile Residue Validation of Precision Cleaned Hardware

    Allen, GJ
    Chief, Kennedy Space Center, FL

    Hoppesch, CW
    Chief, Kennedy Space Center, FL

    Johnson, RS
    AST, Structural Materials Engineer, Kennedy Space Center, FL

    Buckley, M
    Stay In School Student Program, Kennedy Space Center, FL

    Pages: 12    Published: Jan 1993


    Abstract

    In response to the need for finding alternatives to chlorofluorocarbons as a solvent in the precision cleaning process, the effectiveness of water as a replacement solvent is being evaluated. Tests have been conducted using ultrasonics and the Rosemont DC-190 Total Organic Carbon Analyzer (TOCA) as a method for determining the nonvolatile residue analysis in water. Preliminary test data indicates that the TOCA correlates well with turbidity measurements in the detection of selected contaminants in an aqueous matrix. The process is currently under evaluation in the precision cleaning laboratory.

    Keywords:

    ultrasonics, nonvolatile residue, total organic carbon analyzer, aqueous matrix, precision cleaning, chlorofluorocarbon


    Paper ID: STP15951S

    Committee/Subcommittee: G04.02

    DOI: 10.1520/STP15951S


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