international rubber hardness degree


Also found in: Acronyms.

international rubber hardness degree

A measure of hardness, the magnitude of which is derived from the depth of penetration of a specified indenter into a test specimen; 0° represents a material showing no measurable resistance to indentation, and 100° represents a material showing no measurable indentation.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
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