NASA NTRS · 19870000288
Hardness Tester for Polyur
Abstract
Rubber-hardness tester modified for use on rigid polyurethane foam. Provides objective basis for evaluation of improvements in foam manufacturing and inspection. Typical acceptance criterion requires minimum hardness reading of 80 on modified tester. With adequate correlation tests, modified tester used to measure indirectly tensile and compressive strengths of foam.
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Hauser, D. L., Buras, D. F., Corbin, J. M.. 1987-06-01. Hardness Tester for Polyur. https://ntrs.nasa.gov/citations/19870000288
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