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. Scope

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Test Requirement 测试要求：

Flex resistance 耐折

Sample Size 样品数量 / 送样规格: 4pcs x 20cm x 20cm
Lead Time / TAT (Turn Around Time) 测试周期: 常规服务 Regular service 9 working days

Report Summary 报告摘要:

检测实验室 | TESTING LAB：

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