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The hardness is obtained by the difference in penetration depth of a specified dimension ball under two conditions of contact with the rubber: 1 with a small initial force and 2 with a much larger final force. The differential penetration is taken at a specified time and converted to a hardness scale value. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
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Designation: D — 05 Standard Test Method for Rubber Property—International Hardness1 This standard is issued under the xed designation D ; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. Scope 1. The hardness is obtained by the difference in penetration depth of a specied dimension ball under two conditions of contact with the rubber: 1 with a small initial force and 2 with a much larger nal force. The differential penetration is taken at a specied time and converted to a hardness scale value.
ASTM D1415 - 18
If you have forgotten your password, please enter your email address below and click "Reset Password". A new password will be assigned to your account and emailed to you. This test method measures the penetration depth of a rigid ball into the surface of a rubber specimen which is then converted to a hardness scale value IRHD. On the IRHD scale, "0" represents a material having an elastic modulus of zero and represents a material with an immeasurable elastic modulus. This standard can measure the hardness of vulcanized or thermoplastic rubber.