NASA NTRS · 19840000116
Measuring Rind Thickness on Polyurethane Foam
Abstract
Nondestructive test determines rind thickness of polyurethane foam. Surface harness of foam measured by Shore durometer method: hardness on Shore D scale correlates well with rind thickness. Shore D hardness of 20, for example, indicates rind thickness of 0.04 inch (1 millimeter). New hardness test makes it easy to determine rind thickness of sample nondestructively and to adjust fabrication variables accordingly.
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Johnson, C., Miller, J., Brown, H.. 1985-01-01. Measuring Rind Thickness on Polyurethane Foam. https://ntrs.nasa.gov/citations/19840000116
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