4.1 The test gives an estimate of the ability of rubber vulcanizates to resist crack growth of a pierced specimen when subjected to bend flexing.

4.2 No exact correlation between these test results and service is implied due to the varied nature of service conditions.

1.1 This test method covers a test for measuring the cut growth in rubber vulcanizates subjected to repeated bend flexing.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.