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1.1 This test method covers the measurement of fatigue strength in shear by tension loading of adhesives on a standard specimen and under specified conditions of preparation, loading, and testing.

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.

4.1 While this test method is intended for use in metal-to-metal applications it may be used for measuring the fatigue properties of adhesives using plastic adherends, provided consideration is given to the thickness of the plastic adherends. Doublers may be required for plastic adherends to prevent bearing failure in the adherends.

4.2 A variation in the thickness of the adherends can influence the test results. For this reason, the thickness of the sheets used to make the test specimens should be specified in the material specification. When no thickness is specified, metal adherends 1.63 mm (0.064 in.) thick are recommended.