5.1 These tests are used to determine the conformance of a bicycle fork sample to a standard specified for each use classification.

1. Scope

1.1 These test methods describe mechanical tests for determining the following performance properties:

1.1.1 Compression Load,

1.1.2 Bending Load,

1.1.3 Impact Resistance, and

1.1.4 Bending Fatigue Life (followed by Impact Resistance).

1.2 The values stated in SI units are to be regarded as standard.

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.

Test Item 测试名称: ASTM F2273 Standard Test Methods for Bicycle Forks 自行车前叉的标准测试方法

Test Requirement 测试要求：

4.1 compression load test 
4.2 bending load test
4.3 impact resistance test
4.4 fatigue test (250 000cycles)
condition1 250 000cycles achieved without limit tripping at third time
condition2 limit tripping at third time, 50000 cycle per fork, 5 piece on one group

Sample Size 样品数量 / 送样规格:  10pcs
Lead Time / TAT (Turn Around Time) 测试周期: 常规服务 Regular service 7-9 working days

Report Summary 报告摘要: