1.1 These test methods cover procedures for testing flexible materials consisting of copper foil combined with either dielectric film or with treated or impregnated fabric to form flexible composites used in the manufacture of flexible or multilayer circuitry, or both.

1.2 The procedures appear as follows:

ASTM Reference Procedure Section Method Conditioning 4 Flex Life of the Composite 19 to 24 Peel Strength of the Composite 10 to 18 Specimen Preparation 5 D 1825 Strain Relief Due to Etching 25 to 31 Testing of the Dielectric Portion of 6 to 9 D 1825, the Composite D 2305, D 902

1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for infomation only.

1.4 This standard does not purport to address all of the safety problems, 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.