NASA NTRS · 19720000400
Deflection resistance indicator
Abstract
Instrument for nondestructively measuring compression resistance of spray foam used as thermal insulation was developed. Cylindrical indicator has probe with coil spring to provide force and indicating dial. Probe is manually pressed against area to be tested until complete foot area contacts foam surfaces.
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Massey, H. S., Pontious, H. L., Zinsley, W. M.. 1972-12-01. Deflection resistance indicator. https://ntrs.nasa.gov/citations/19720000400
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